Castle NameLicenceLicence URLImage Source URL
Penshurst Place(FAL 1.3)http://artlibre.org/licence/lal/en/https://commons.wikimedia.org/wiki/File:Penshurst_place_italian_garden_in_spring.jpg
Alnwick Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Alnwick_Castle_02.jpg
Amberley Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Amberley_castle.jpg
Bamburgh Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Bamburgh_2006_closeup.jpg
Belvoir Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Belvoir_Castle.jpg
Bolsover Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Bolsover_Castle_-_geograph.org.uk_-_205752.jpg
Cahir Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Cahir_Castle,_Tipperary_County,_Ireland_(6961416840)_(2).jpg
Carlisle Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Carlisle_Castle_03.jpg
Highclere Castle(CC BY 2.0)http://creativecommons.org/licenses/by/2.0https://commons.wikimedia.org/wiki/File:Highclere_Castle.jpg
Blair Castle(CC BY 2.0)http://creativecommons.org/licenses/by/3.0https://commons.wikimedia.org/wiki/File:Blair_castle_-_facade.jpg
Castle Drogo(CC BY 2.0)http://creativecommons.org/licenses/by/3.0https://commons.wikimedia.org/wiki/File:Drogo-wyrd-01.jpg
Balmoral Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Balmoral_Castle.jpg
Berkeley Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Berkeley_Castle_-_geograph.org.uk_-_1440403.jpg
Brougham Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Brougham_Castle_from_the_north_east.jpg
Brougham Hall(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Brougham_Hall_-_geograph.org.uk_-_1532.jpg
Broughton Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Broughton_castle2.jpg
Carrickfergus Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Carrickfergus_Castle,_reflections_at_sunset_-_geograph.org.uk_-_1098306.jpg
Castle Leod(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Castle_Leod_(geograph_4176882).jpg
Chester Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0http://www.nationalarchives.gov.uk/doc/open-government-licence/version/1/
Cholmondeley Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Cholmondeley_Castle.jpg
Clare Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Clare_Castle_Motte.jpg
Compton Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Compton_Castle_in_Devon_enh.jpg
Conwy Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Conwy_Castle.jpg
Edzell Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Edzell_Castle.jpg
Lennoxlove(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Lennoxlove_House_-_geograph.org.uk_-_37990.jpg
Monmouth Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Monmouth_Castle_-_geograph.org.uk_-_1373622.jpg
Muncaster Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/2.0https://commons.wikimedia.org/wiki/File:Muncaster_Castle1.jpg
Ashby de la Zouch Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/3.0https://commons.wikimedia.org/wiki/File:Ashby_de_la_Zouch_castle_main_buildings.JPG
Craigmillar Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/3.0https://commons.wikimedia.org/wiki/File:Craigmillar_Castle.jpg
Dalkey(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/3.0https://en.wikipedia.org/wiki/File:Dalkey_Castle.jpg
Duart Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/3.0https://commons.wikimedia.org/wiki/File:Duart_Castle.jpg
Glenarm Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/3.0https://commons.wikimedia.org/wiki/File:Glenarm_Castle.jpg
O'Brien's Tower(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/3.0https://commons.wikimedia.org/wiki/File:O%27Brien%27s_Tower.jpg
Chepstow Castle(CC BY-SA 2.0)http://creativecommons.org/licenses/by-sa/4.0https://commons.wikimedia.org/wiki/File:Chepstow_Castle_(4197).jpg
Calshot Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Calshot_castle_evening.JPG
Southsea Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Southsea_castle_from_the_east.JPG
Caerphilly Castle(OGL 1.0)http://www.nationalarchives.gov.uk/doc/open-government-licence/version/1/https://commons.wikimedia.org/wiki/File:Caerphilly_aerial.jpg
Harlech Castle(OGL 1.0)http://www.nationalarchives.gov.uk/doc/open-government-licence/version/1/https://commons.wikimedia.org/wiki/File:Harlech_Castle_-_Cadw_photograph.jpg
Kenilworth Castle(CC BY 1.0)https://creativecommons.org/licenses/by/1.0/https://commons.wikimedia.org/wiki/File:Kenilworth_Castle_gatehouse_landscape.jpg
Braemar Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Braemar_Castle_1.jpg
Chillingham Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Chillingham_Castle.jpg
Croft Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://en.wikipedia.org/wiki/Croft_Castle#/media/File:Croft_Castle_6.jpg
Dover Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Keep_and_entrance_of_Dover_Castle,_2007.jpg
Dunrobin Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Dunrobin_Castle_-Sutherland_-Scotland-26May2008_(2).jpg
Farleigh Hungerford Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Farleigh_Hungerford_East_Gate.jpg
Framlingham Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Franglingham_Castle_01.jpg
Fyvie Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Fyvie_Castle,_Geograph.jpg
House of The Binns(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:The_Bins.jpeg
King John's Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:King_John%27s_Castle_in_Limerick.jpg
Longford Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Longford_Castle_front.jpg
Maxstoke Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Maxstoke_Castle,_2010.jpg
Orford Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Orford_Castle_Keep.jpg
Penrhyn Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Penrhyn_Castle.jpg
Peveril Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Peveril_Castle_keep,_2009.jpg
Portchester Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Portchester_castle_04.jpg
Powderham Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Powderham_Castle,_2009.jpg
Raby Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Raby_Castle_(spring).jpg
Redwood Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Redwood_Castle.jpg
Sissinghurst Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Sissinghurst_Gardens_1_(4907255329).jpg
Skipton Castle(CC BY 2.0)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Skipton_Castle_main_gate,_2007.jpg
Waterford Castle(CC BY 2.5)https://creativecommons.org/licenses/by/2.0/https://commons.wikimedia.org/wiki/File:Waterford_Castle_(9731237454).jpg
Blarney Castle(CC BY 2.5)https://creativecommons.org/licenses/by/2.5/https://commons.wikimedia.org/wiki/File:Blarney_Castle.JPG
Dean Castle(CC BY 2.5)https://creativecommons.org/licenses/by/2.5/https://commons.wikimedia.org/wiki/File:Dean_Castle.JPG
Rothesay Castle(CC BY 2.5)https://creativecommons.org/licenses/by/2.5/https://commons.wikimedia.org/wiki/File:RothesayCastleNW.JPG
Stafford Castle(CC BY 2.5)https://creativecommons.org/licenses/by/2.5/https://commons.wikimedia.org/wiki/File:StaffordCastle1.jpg
Turton Tower(CC BY 2.5)https://creativecommons.org/licenses/by/2.5/https://commons.wikimedia.org/wiki/File:Turton_Tower.jpg
Windsor Castle(CC BY 2.5)https://creativecommons.org/licenses/by/2.5/https://commons.wikimedia.org/wiki/File:Windsor_Castle_at_Sunset_-_Nov_2006.jpg
Caernarfon Castle(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://commons.wikimedia.org/wiki/File:Caernarfon_Castle_1994.jpg
Clontarf Castle(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://en.wikipedia.org/wiki/File:ClontarfCastleHotel.JPG
Doe Castle/Caisleán na dTuath(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://commons.wikimedia.org/wiki/File:Doe_Castle_-_panoramio.jpg
Leeds Castle(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://commons.wikimedia.org/wiki/File:Leeds_castle.JPG
Rochester Castle(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://commons.wikimedia.org/wiki/File:Rochester_Castle_Keep_and_Bailey_0038stcp.JPG
Slane Castle(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://commons.wikimedia.org/wiki/File:Slane_Castle_by_paride.JPG
Tutbury Castle(CC BY 3.0)https://creativecommons.org/licenses/by/3.0/https://commons.wikimedia.org/wiki/File:Tutbury_Castle.jpg
Aberdour Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:East_Range_of_Aberdour_Castle.jpg
Abergavenny Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Abergavenny_Castle_2.jpg
Antrim Castle Gardens(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:The_Castle_Walls,_Antrim_(2)_-_geograph.org.uk_-_880402.jpg
Arundel Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Arundel_Castle_-West_Sussex,_England-23June2011.jpg
Audley's Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Audley%27s_Castle,_through_trees.jpg
Ayton Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Ayton_Castle_-_geograph.org.uk_-_813849.jpg
Ballygally Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Ballygally_Castle.jpg
Balvenie Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Balvenie_Castle_Ruin.jpg
Barberstown Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Barberstown_Castle,_Straffan._Co_Kildare_(3)_-_geograph.org.uk_-_1254264.jpg
Barcaldine Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://en.wikipedia.org/wiki/Barcaldine_Castle#/media/File:Barcaldine_Castle_-_geograph.org.uk_-_346164.jpg
Belsay Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Belsay_Castle.jpg
Berry Pomeroy Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Berry_Pomeroy_Castle_-_geograph.org.uk_-_411651.jpg
Bolton Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Bolton_Castle,_at_Castle_Bolton_-_geograph.org.uk_-_1390969.jpg
Cabra Castle Hotel(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Kingscourt_-_Cabra_Castle_view_from_entrance_driveway_-_geograph.org.uk_-_1619780.jpg
Caerlaverock Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Caerlaverock_Castle_from_the_air.jpg
Caister Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Caister_Castle.jpg
Cardoness Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Cardoness_Castle.jpg
Carisbrooke Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Carisbrooke_Castle_-_geograph.org.uk_-_528953.jpg
Carsluith Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Carsluith_Castle.jpg
Castle Menzies(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Castle_Menzies.jpg
Chiddingstone Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:The_lake_by_Chiddingstone_Castle_-_geograph.org.uk_-_1260134.jpg
Chipchase Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Chipchase_Castle.jpg
Coity Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Coity_Castle.jpg
Craggaunowen Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Craggaunowen_Project,_The_Crannog_-_geograph.org.uk_-_793400.jpg
Criccieth Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Criccieth_Castle_-_geograph.org.uk_-_597029.jpg
Dalton Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dalton_Castle.jpg
Dartmouth Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dartmouth_Castle_-_geograph.org.uk_-_725989.jpg
Donegal Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Donegalcastle.jpg
Drumlanrig Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Drumlanrig_Castle.jpg
Dundrum Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dundrum_Castle.jpg
Dunluce Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dunluce_Castle.jpg
Dunscaith Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dunscaith_Castle.jpeg
Dunstaffnage Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dunstaffnage_Castle.jpg
Dunster Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dunster_Castle.jpg
Dunvegan Castle Historic House(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Dunvegan_Castle.jpg
Eastnor Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Front_entrance_to_Eastnor_Castle_-_geograph.org.uk_-_1468597.jpg
Elton Hall(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Elton_Hall_-_geograph.org.uk_-_1258739.jpg
Elvaston Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Elvaston_Castle_-_geograph.org.uk_-_6393.jpg
Falkland Palace(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Falkland_Palace.jpg
Floors Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Floors_Castle.jpg
Fort George(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Fort_George_-_geograph.org.uk_-_1242152.jpg
Glenveagh Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Glenveagh_Castle_-_geograph.org.uk_-_395086.jpg
Goodrich Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Goodrich_Castle_01.jpg
Guildford Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Guildford_Castle,_2015_(32)_(21688488881).jpg
Hampton Court(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Great_Gate,_Hampton_Court_Palace.jpg
Huntingtower Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Huntingtower_Castle,_near_Perth.jpg
Huntly Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Huntly_Castle.jpg
Hurst Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Hurst_Castle,_near_Milford_on_Sea,_Hampshire,_England-2Oct2010_trimmmed.jpg
Hutton-in-the-Forest(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Hutton-in-the-Forest_02.jpg
Inverlochy Castle Hotel(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Main_entrance_Inverlochy_Castle._-_geograph.org.uk_-_107768.jpg
Kentchurch Court(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Geograph-2751788-by-Philip-Halling-cropped.jpg
Kilclief Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Kilclief_Castle,_Geograph.jpg
Kinbane Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Kinbane_Castle,_daylight.jpg
Kinneil House(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Kinneil_House.jpg
Kinnersley Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Kinnersley_Castle.jpg
Kinnettles Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Kinnettles_House_-_geograph.org.uk_-_955615.jpg
Leasowe Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Leasowe_Castle.jpg
Lincoln Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Lincoln_Castle,_Lincoln_-_geograph.org.uk_-_689665.jpg
Longthorpe Tower(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Longthorpe_Tower1.jpg
Lowther Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:LowtherCastle.jpg
Ludlow Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Ludlow_Castle_from_Whitcliffe,_2011.jpg
Malahide Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Malahide_Castle,_March_2011_(2).jpg
Manorbier Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Manorbier_Castle.jpg
Markree Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Markree-castle-by-night-2.jpeg
Minard Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Minard_Castle_-_geograph.org.uk_-_461007.jpg
Monea Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Monea_Castle1.jpg
Narrow Water Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Narrow_Water_Tower,_Warrenpoint_-_geograph.org.uk_-_399224.jpg
Newark Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Newark_Castle,_2008.jpg
Norwich Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Norwich_Castle_keep,_2009.jpg
Oxwich Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Oxwich_Castle_4.jpg
Oystermouth Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Oystermouth_Castle_-_geograph.org.uk_-_1617797.jpg
Raglan Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Raglan_Castle%27s_main_entrance.jpg
Richmond Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Bailey_and_keep,_Richmond_Castle_-_geograph.org.uk_-_1318287.jpg
Rockingham Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Rockingham_Castle_entrance.jpg
Roscrea Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Roscrea_Castle.jpg
Sandringham House(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Sandringham_-_geograph.org.uk_-_1062504.jpg
Scarborough Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Scarborough_Castle_3.jpg
Sizergh Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Sizergh_Castle_01.jpg
St. Mawes Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:St_Mawes_Castle_-_geograph.org.uk_-_561873.jpg
Stonefield Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Stonefield_Castle_-_geograph.org.uk_-_14476.jpg
Stormont Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Stormont_Castle_-_geograph.org.uk_-_964434.jpg
Tamworth Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Tamworth_Castle_343714.jpg
Tattershall Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Tattershall_Castle,_2006.jpg
Thirlestane Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Thirlestane_Castle.jpg
Tintagel Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Upper_mainland_courtyard_of_Tintagel_Castle,_2007.jpg
Tiverton Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Tiverton_,_Tiverton_Castle_Ruins_-_geograph.org.uk_-_1272097.jpg
Trematon Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Keep,_Trematon_Castle_-_geograph.org.uk_-_1192900.jpg
Tretower Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Tretower_Castle.jpg
Tulloch Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Tulloch_Castle_(geograph_3548404).jpg
Upnor Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Upnor_Castle,_Kent_riverside_view.jpg
Usk Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Garrison_Tower_and_sundial,_Usk_Castle_-_geograph.org.uk_-_1425960.jpg
Walmer Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Entrance_to_Walmer_Castle_-_geograph.org.uk_-_237099.jpg
Wells Bishop's Palace(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Bishopspalacewells.jpg
Weobley Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Weobley_Castle.jpg
Yarmouth Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Artillery_gun_at_Yarmouth_Castle.jpg
Powis Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:PowisCastle.jpg
Prudhoe Castle(CC BY-SA 2.0)https://creativecommons.org/licenses/by-sa/2.0/https://commons.wikimedia.org/wiki/File:Prudhoe_Castle_2.jpg
Castle Coole(CC BY-SA 2.5)https://creativecommons.org/licenses/by-sa/2.5/https://commons.wikimedia.org/wiki/File:Castle_Coole_Frontage.JPG
Newark Castle(CC BY-SA 2.5)https://creativecommons.org/licenses/by-sa/2.5/https://commons.wikimedia.org/wiki/File:Newark_Castle_from_sw.jpg
Ashford Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Ashby_de_la_Zouch_castle_main_buildings.JPG
Auckland Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Auckland_Castle_Crop.jpg
Balgonie Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:BalgonieCastle04.jpg
Belfast Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Belfast_Castle,_August_2011.jpg
Birr Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Birr_Castle,_Offaly.jpg
Blackness Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:NEWScotland-2016-Aerial-Blackness_Castle_01.jpg
Blackrock Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Blackrock_Castle_(Blackrock,_Co.Cork).jpg
Bodiam Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Bodiam-castle-10My8-1197.jpg
Bothwell Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Bothwell_Castle_20080505_-_south-east_tower.jpg
Brodick Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Brodick_Castle_Main_Building_East_01.jpg
Brough Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:BroughCastleSE.jpg
Burgh Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:BurghCastle-g4.jpg
Caerhays Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Caerhayes_Castle.jpg
Cardiff Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Autumnal_Cardiff_Castle.JPG
Carew Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Carew_Castle_across_Mill_Pond.JPG
Castle Lachlan old(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Old_Castle_Lachlan_20100927.jpg
Castle of Mey(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Mey_castle_2.JPG
Castle Ward(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Castle_Ward_2.JPG
Cawdor Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Ecosse2009127.JPG
Cilgerran Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:01_Cilgerran_Castle.jpg
Clifford's Tower(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Cliffords_Tower_York_UK.JPG
Colchester Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Colchester-castle.jpg
Conisbrough Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:ConisbroughCastle.jpg
Corfe Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Corfe_Castle,_Dorset.jpg
Craigievar Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Craigievar_castle_1991.jpg
Craignethan Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Craignethan_Castle.jpg
Crathes Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Crathes_Castle.jpg
Culzean Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Culzean_Castle_house_and_gardens_01.JPG
Deal Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Deal_Castle_Aerial_View.jpg
Denbigh Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Denbigh_Castle_3.jpg
Desmond Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Desmond_Castle.jpg
Dirleton Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Dirleton_S.jpg
Drum Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Drum_Castle.jpg
Dublin Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:The_Dubhlinn_Gardens_Dublin_Castle_01.JPG
Dumbarton Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Scotland_Dumbarton_Castle_bordercropped.jpg
Dunguaire Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Dunguaire_Castle,_Galway,_Ireland.png
Edinburgh Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Edinburgh_Castle_from_the_south_east.JPG
Eilean Donan Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Eilean_Donan_Castle,_Scotland_-_Jan_2011.jpg
Enniskillen Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Enniskillen_Castle_by_Paride.JPG
Farnham Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Farnham_Castle_keep.jpg
Fonmon Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Fonmon_Castle_-_Watchtower.jpg
Glenapp Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:A_country_house_in_Scotland_1.JPG
Grimsthorpe Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Grimsthorpe_Castle_-_North_Facade.JPG
Hastings Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Hastings_Castle_2012-07-28.jpg
Hermitage Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Hermitage_Castle_06.jpg
Holyrood Palace(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Palace_of_Holyroodhouse,_Edinburgh.jpg
Johnstown Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Johnstwon_Castle.jpg
Kellie Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Kellie_Castle_and_Grounds.JPG
Kendal Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Kendal_Castle_From_Above,_Sept_2015.jpg
Kirby Muxloe Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Kirby_Muxloe.jpg
Lancaster Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Lancaster_Castle_Ashton_Memorial.JPG
Leap Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Castle_Leap,_Birr,_Ireland.jpg
Lews Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:LewsCastle.jpg
Linlithgow Palace(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Am_linlithgow_palace_south.jpg
Lough Rynn Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Lough_Rynn_statue.jpg
Lullingstone Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Lullingstone.manor.JPG
MacLellans Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:MacLellan%27s_Castle_exterior_2_August_2013.jpg
Newcastle Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Newcastle_schloss.jpg
Old Sarum Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Old_Sarum_Cathedral_with_motte.JPG
Old Wardour Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Old_Wardour_Castle_56.JPG
Peckforton Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Peckforton_Castle_2014.jpg
Pembroke Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Pembroke_Castle_-_June_2011.jpg
Pevensey Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Pevensey_Castle_from_the_West.jpg
Picton Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:02_Picton_Castle_Pembrokeshire.JPG
Portaferry Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Portaferry_Castle_(03),_October_2009.JPG
Portland Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Portland_castle_closeup.jpg
Ravenscraig Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Ravenscraig_Castle_01.jpg
Rhuddlan Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Rhuddlan_Castle,_May_2012.jpg
Rock of Cashel(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:RockOfCashelSummer1986.jpg
Rock of Dunamase(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Castle_of_Dunamase_im_Abendlicht_02.jpg
Roscommon Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Roscommon_Castle.JPG
Ruthin Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Castell_Rhuthun_-_adfeilion_y_goresgynwyr_(wel_o_lia_fe_drion_nhw)_27.JPG
Rye Castle (Ypres Tower)(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:The_Ypres_Tower_Rye.jpg
Scalloway Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Scalloway_Castle_(August_2013).jpg
Shrewsbury Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Shrewsbury_Schloss.JPG
Spynie Palace(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:David%27s_tower.jpg
St. Michael's Mount(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:St_michaels_mount.jpg
Staigue Fort(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Staigue_Fort.jpg
Stirling Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Scotland-2016-Aerial-Stirling-Stirling_Castle.jpg
Tonbridge Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:TonbridgeCastle0021.JPG
Tower of London(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Tower_of_London_viewed_from_the_River_Thames.jpg
Tullynally Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Tully-Nally-Castle_03.jpg
Tynemouth Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Tynemouth_Castle_and_Priory.jpg
Urquhart Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Urquhart_Castle_distance_2.jpg
White Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:White_Castle,_inner_ward_gatehouse_and_curtain_wall.JPG
Winchester Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:WinchesterCastle.jpg
Wray Castle(CC BY-SA 3.0)https://creativecommons.org/licenses/by-sa/3.0/https://commons.wikimedia.org/wiki/File:Wray_Castle_2008.jpg
Armadale Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Armadale_Castle_5.jpg
Athlone Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Athlone_Castle_Westmeath.JPG
Beeston CastleBeeston CastleBeeston CastleBeeston Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Beeston_Castle_2016_017.jpg
Broughty Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:BroughtyCastle.jpg
Castell Coch(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Castell_Coch_-_exterior.JPG
Castle Rising(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Castle_Rising_Castle_2016.jpg
Doune Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Scotland-2016-Aerial-Doune_Castle_(and_Castle_keeper%27s_cottage).jpg
Herstmonceux Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Herstmonceux_Castle_with_moat.jpg
Hopetoun House(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Scotland-2016-West_Lothian-Hopetoun_House_01.jpg
Inveraray Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Inveraray_Castle_-_south-west_facade.jpg
Lewes Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Lewes_Castle_towers.JPG
Lulworth Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Lulworth_Castle_(1942).jpg
Newbattle Abbey(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Scotland-2016-Aerial-Newbattle_Abbey_03.jpg
Oxburgh Hall(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Oxburgh_Hall_-_viewed_from_the_west.jpg
St Catherine's Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:St_Catherine%27s_Castle_and_Polruan.jpg
Sudeley Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Aerial_photo_of_Sudeley_Castle.jpg
Warwick Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Warwick_Castle_May_2016.jpg
Whittington Castle(CC BY-SA 4.0)https://creativecommons.org/licenses/by-sa/4.0/https://commons.wikimedia.org/wiki/File:Whittington_Castle_October_2014.JPG
Glamis Castle(CC SA 1.0)https://creativecommons.org/licenses/sa/1.0/https://commons.wikimedia.org/wiki/File:GlamisWide.JPG
Cyfarthfa Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:MerthyrTydfilCyfarthfaCastleFrontView.jpg
Nottingham Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Nottingham_Castle_Gate_2009.jpg
Stokesay Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Stokesay_Castle_from_churchyard_1.jpg
Taunton Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Taunton_Castle.JPG
Ackergill Tower(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Ackergill.JPG
Ardgillan Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Ardgillan_castle.jpg
Balhousie Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:2003-06-07_-_Balhousie_Castle,_Perth_01.jpg
Brodie Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Brodie_Castle.jpg
Bunratty Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Bunrattybig.jpg
Caldicot Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Caldicot_Castle.jpg
Castle Fraser(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Castle_Fraser_1.jpg
Castle Leslie(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:CastleLeslieSummer2006.jpg
Charleville Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Charleville_Castle.png
Chirk Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:ChirkCastle1.JPG
Clitheroe Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Clitheroe_Castle.JPG
Corgarff Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Corgarff_Castle_from_Lecht_Road.jpg
Dalkeith Palace(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Dalkeith_Palace.jpg
Delgatie CastleDelgatie Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Delgatie_Castle.jpg
Dromoland Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Dromoland_Castle.jpg
Elcho Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Elcho_castle.jpg
Haddon Hall(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Haddon_Hall.jpg
Hever Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Front_view_of_Hever_Castle,_Kent.jpg
Hexham Moot Hall and Old Gaol(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Hexham_Old_Gaol.jpg
Kilkenny Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Kilkenny-castle.jpg
Kinnitty Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:IMG_KinnittyCastle0973.jpg
Listowel Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Listowel_Castle.JPEG
Middleham Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:MiddlehamCJW.jpg
Parke's Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Parkes_at_Sunset.JPG
Pendennis Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Pendennis_Castle.jpg
Preston Tower(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:PrestonTower02.jpg
Restormel Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:RestormelCastle.JPG
Ripley Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Ripley_Castle_1.JPG
Scotney Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Scotney_Castle_with_white_wisteria.JPG
Thornbury Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Thornbury.castle.west.front.arp.750pix.jpg
Tolquhon Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Tolquhon_Castle,_entrance_detail.jpg
Totnes Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:Totnes_Castle2.JPG
Watermouth Castle(CC0 1.0)https://creativecommons.org/publicdomain/zero/1.0/deed.enhttps://commons.wikimedia.org/wiki/File:WatermouthCastleCornerView.jpg