Title: The Best Hotels Closest to Grey Towers National Historic Site in Milford - 2026 Updated Prices | Expedia.co.uk [Holiday Rentals in Milford](https://expedia.co.uk/Milford-Holiday-Rentals.d8742.Travel-Guide-HolidayRentals)[Grey Towers National Historic Site Car Hire](https://expedia.co.uk/Compare-Cheap-Car-Hire-In-Grey-Towers-National-Historic-Site.d6328868.Car-Hire-Guide)[Grey Towers National Historic Site Holidays](https://expedia.co.uk/Grey-Towers-National-Historic-Site-Milford.d6328868.Attraction) ![Default HTG hotel image](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_lodging_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) ![](https://a.travel-assets.com/travel-assets-manager/fallback-images-brand/bex_lodging_v2.jpg?impolicy=fcrop&w=1200&h=500&q=medium) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__price_find.svg) ### Change your mind Book hotels with free cancellation - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__deals.svg) ### Treat yourself Save instantly and earn perks with One Key [Learn about One Key](https://www.expedia.co.uk/welcome-one-key) - ![](https://a.travel-assets.com/travel-assets-manager/pictogram-bex/light__bed.svg) ### Be picky Search almost a million properties worldwide ## Check prices for these dates Tonight [19 Jan - 20 Jan](https://www.expedia.co.uk/Hotel-Search?regionId=6328868&startDate=2026-01-19&endDate=2026-01-20&adults=2&rfrr=TG.LP.CheckPrices.Hotel&openPlayBack=true) Tomorrow [20 Jan - 21 Jan](https://www.expedia.co.uk/Hotel-Search?regionId=6328868&startDate=2026-01-20&endDate=2026-01-21&adults=2&rfrr=TG.LP.CheckPrices.Hotel&openPlayBack=true) This weekend [23 Jan - 25 Jan](https://www.expedia.co.uk/Hotel-Search?regionId=6328868&startDate=2026-01-23&endDate=2026-01-25&adults=2&rfrr=TG.LP.CheckPrices.Hotel&openPlayBack=true) Next weekend [30 Jan - 1 Feb](https://www.expedia.co.uk/Hotel-Search?regionId=6328868&startDate=2026-01-30&endDate=2026-02-01&adults=2&rfrr=TG.LP.CheckPrices.Hotel&openPlayBack=true) Recommended Price (low to high) Distance Property class ## Our top choices for Grey Towers National Historic Site hotels ![Outdoor wedding area](https://images.trvl-media.com/lodging/110000000/109920000/109911700/109911634/b0d46466.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Restaurant](https://images.trvl-media.com/lodging/110000000/109920000/109911700/109911634/6aefbcd5.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Couples’ dining](https://images.trvl-media.com/lodging/110000000/109920000/109911700/109911634/cf477cf4.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Point of interest](https://images.trvl-media.com/lodging/110000000/109920000/109911700/109911634/8d973ad2.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### John H Wallace House [](https://www.expedia.co.uk/Milford-Hotels-John-H-Wallace-House.h109911634.Hotel-Information) 0.8 mi from Grey Towers National Historic Site 10/10 Exceptional (15 reviews) "The John H. Wallace House is a welcoming and comfortable place to stay. Don’t hesitate to make a reservation to go there. " ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Barbara £138 includes taxes & fees 19 Feb - 20 Feb [](https://www.expedia.co.uk/Milford-Hotels-John-H-Wallace-House.h109911634.Hotel-Information) ![Lunch and dinner served](https://images.trvl-media.com/lodging/73000000/72390000/72388100/72388068/606f7583.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![King Suite | Premium bedding, in-room safe, individually decorated](https://images.trvl-media.com/lodging/73000000/72390000/72388100/72388068/741e5cb6.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Deluxe Room | Premium bedding, in-room safe, individually decorated](https://images.trvl-media.com/lodging/73000000/72390000/72388100/72388068/9e0b7685.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Terrace/patio](https://images.trvl-media.com/lodging/73000000/72390000/72388100/72388068/c5b240e0.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Tom Quick Inn [](https://www.expedia.co.uk/Milford-Hotels-Tom-Quick-Inn.h72388068.Hotel-Information) 0.8 mi from Grey Towers National Historic Site 9.0/10 Wonderful (161 reviews) "Nice and clean great breakfast " ![Australia](https://a.travel-assets.com/egds/marks/flags/au.svg) Moji £79 includes taxes & fees 26 Jan - 27 Jan [](https://www.expedia.co.uk/Milford-Hotels-Tom-Quick-Inn.h72388068.Hotel-Information) ![Meeting facility](https://images.trvl-media.com/lodging/2000000/1700000/1694100/1694077/166eb983.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Business centre](https://images.trvl-media.com/lodging/2000000/1700000/1694100/1694077/23eb1cf6.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Porch](https://images.trvl-media.com/lodging/2000000/1700000/1694100/1694077/f4e41e9c.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Restaurant](https://images.trvl-media.com/lodging/2000000/1700000/1694100/1694077/0c9fc5aa.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Hotel Fauchere [](https://www.expedia.co.uk/Milford-Hotels-Hotel-Fauchere.h1694077.Hotel-Information) 0.8 mi from Grey Towers National Historic Site 9.2/10 Wonderful (250 reviews) "Very courteous staff, comfortable clean accommodations and excellent breakfast." ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Nancy £187 includes taxes & fees 27 Jan - 28 Jan [](https://www.expedia.co.uk/Milford-Hotels-Hotel-Fauchere.h1694077.Hotel-Information) ![Exterior](https://images.trvl-media.com/lodging/35000000/35000000/34990100/34990098/867346e7.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Reception](https://images.trvl-media.com/lodging/35000000/35000000/34990100/34990098/c5294f82.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Lobby](https://images.trvl-media.com/lodging/35000000/35000000/34990100/34990098/6a06ddab.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Combined shower/bathtub, free toiletries, hair dryer, towels](https://images.trvl-media.com/lodging/35000000/35000000/34990100/34990098/4b911840.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Myer Motel [](https://www.expedia.co.uk/Milford-Hotels-Myer-Motel.h34990098.Hotel-Information) 1.1 mi from Grey Towers National Historic Site 9.4/10 Exceptional (396 reviews) "Great stay!!!" ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Kenneth £73 includes taxes & fees 20 Jan - 21 Jan [](https://www.expedia.co.uk/Milford-Hotels-Myer-Motel.h34990098.Hotel-Information) ![Exterior](https://images.trvl-media.com/lodging/84000000/83500000/83498500/83498486/faebceec.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Two Bedroom Apartment Suite | Living area | LED TV](https://images.trvl-media.com/lodging/84000000/83500000/83498500/83498486/8a954851.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Two Bedroom Apartment Suite | Bathroom | Free toiletries, hair dryer, slippers, towels](https://images.trvl-media.com/lodging/84000000/83500000/83498500/83498486/91e7e325.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Mexican cuisine](https://images.trvl-media.com/lodging/84000000/83500000/83498500/83498486/b71b0f83.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### La Posada [](https://www.expedia.co.uk/Milford-Hotels-La-Posada.h83498486.Hotel-Information) 1 mi from Grey Towers National Historic Site 8.8/10 Excellent (103 reviews) "Love the decor and very friendly staff" ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Janel £143 includes taxes & fees 1 Feb - 2 Feb [](https://www.expedia.co.uk/Milford-Hotels-La-Posada.h83498486.Hotel-Information) ![Iron/ironing board, free WiFi, bed sheets](https://images.trvl-media.com/lodging/1000000/870000/869100/869042/a0750e5c.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Exterior](https://images.trvl-media.com/lodging/1000000/870000/869100/869042/ea9e189f.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Exterior](https://images.trvl-media.com/lodging/1000000/870000/869100/869042/3d4a1c89.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Lobby](https://images.trvl-media.com/lodging/1000000/870000/869100/869042/11fb657e.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Rodeway Inn Milford - I-84 [](https://www.expedia.co.uk/Milford-Hotels-Rodeway-Inn-Milford-I-84.h869042.Hotel-Information) 1 mi from Grey Towers National Historic Site 7.8/10 Good (409 reviews) "Clean room friendly staff and easy parking " ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Hugh £69 includes taxes & fees 17 Feb - 18 Feb [](https://www.expedia.co.uk/Milford-Hotels-Rodeway-Inn-Milford-I-84.h869042.Hotel-Information) ![Exterior](https://images.trvl-media.com/lodging/5000000/4610000/4608400/4608378/d9ea05b9.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Reception](https://images.trvl-media.com/lodging/5000000/4610000/4608400/4608378/f3df6d0c.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Exterior](https://images.trvl-media.com/lodging/5000000/4610000/4608400/4608378/46465b95.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Room, 2 Queen Beds | Desk, iron/ironing board, free WiFi, alarm clocks](https://images.trvl-media.com/lodging/5000000/4610000/4608400/4608378/371397cf.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Fairbridge Inn Express [](https://www.expedia.co.uk/Milford-Hotels-Fairbridge-Inn-Express.h4608378.Hotel-Information) 1.1 mi from Grey Towers National Historic Site 7.4/10 Good (211 reviews) "Parking was very convenient." ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) TIMOTHY £69 includes taxes & fees 26 Jan - 27 Jan [](https://www.expedia.co.uk/Milford-Hotels-Fairbridge-Inn-Express.h4608378.Hotel-Information) ![Exterior](https://images.trvl-media.com/lodging/1000000/870000/869200/869101/cc0b1965.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Standard Room, 1 King Bed | Desk, free WiFi, bed sheets](https://images.trvl-media.com/lodging/1000000/870000/869200/869101/07453471.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Exterior](https://images.trvl-media.com/lodging/1000000/870000/869200/869101/2f65d2b6.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Lobby](https://images.trvl-media.com/lodging/1000000/870000/869200/869101/94b421be.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Scottish Inns Milford [](https://www.expedia.co.uk/Milford-Hotels-Scottish-Inns-Milford.h869101.Hotel-Information) 3.9 mi from Grey Towers National Historic Site 9.0/10 Wonderful (999 reviews) "VERY CLEAN STAFF WAS OUTSTANDING AAA+++" ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Donald Adrien £73 includes taxes & fees 25 Jan - 26 Jan [](https://www.expedia.co.uk/Milford-Hotels-Scottish-Inns-Milford.h869101.Hotel-Information) ![Lobby](https://images.trvl-media.com/lodging/3000000/2780000/2774600/2774574/59ea02f7.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Fitness facility](https://images.trvl-media.com/lodging/3000000/2780000/2774600/2774574/286b664c.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Lobby](https://images.trvl-media.com/lodging/3000000/2780000/2774600/2774574/e1440092.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Indoor pool](https://images.trvl-media.com/lodging/3000000/2780000/2774600/2774574/08fad23e.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Hampton Inn Matamoras/Milford [](https://www.expedia.co.uk/Matamoras-Hotels-Hampton-Inn-Matamoras-Milford.h2774574.Hotel-Information) 5.3 mi from Grey Towers National Historic Site 8.8/10 Excellent (1,005 reviews) "The hotel is well maintained Clean quiet Staff is efficient and friendly!" ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Maria £73 includes taxes & fees 8 Feb - 9 Feb [](https://www.expedia.co.uk/Matamoras-Hotels-Hampton-Inn-Matamoras-Milford.h2774574.Hotel-Information) ![Bar (on property)](https://images.trvl-media.com/lodging/1000000/30000/27300/27210/54a4e005.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Lobby](https://images.trvl-media.com/lodging/1000000/30000/27300/27210/95f0eb53.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Lounge](https://images.trvl-media.com/lodging/1000000/30000/27300/27210/ab56e4cd.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Indoor pool, pool loungers](https://images.trvl-media.com/lodging/1000000/30000/27300/27210/5acfc319.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### Best Western Hunt's Landing Hotel Matamoras/Milford [](https://www.expedia.co.uk/Matamoras-Hotels-Best-Western-Hunts-Landing-Hotel-MatamorasMilford.h27210.Hotel-Information) 5.5 mi from Grey Towers National Historic Site 8.4/10 Very good (1,007 reviews) "The staff were great, nice lobby, clean rooms. Only downsides were the bathrooms haven’t been updated in many years, and the breakfast was subpar. " ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Olivia £74 includes taxes & fees 26 Jan - 27 Jan [](https://www.expedia.co.uk/Matamoras-Hotels-Best-Western-Hunts-Landing-Hotel-MatamorasMilford.h27210.Hotel-Information) ![Comfort Room, 2 Double Beds | Iron/ironing board, free WiFi](https://images.trvl-media.com/lodging/108000000/107260000/107254000/107253932/366b5630.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Exterior](https://images.trvl-media.com/lodging/108000000/107260000/107254000/107253932/77332016.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Comfort Room, 1 Queen Bed | Iron/ironing board, free WiFi](https://images.trvl-media.com/lodging/108000000/107260000/107254000/107253932/8995b312.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ![Terrace/patio](https://images.trvl-media.com/lodging/108000000/107260000/107254000/107253932/dad3e76a.jpg?impolicy=fcrop&w=357&h=201&p=1&q=medium) ### High Point Motel [](https://www.expedia.co.uk/Sussex-Hotels-High-Point-Motel.h107253932.Hotel-Information) 8.7 mi from Grey Towers National Historic Site 9.0/10 Wonderful (109 reviews) "Great place to stay" ![United States](https://a.travel-assets.com/egds/marks/flags/us.svg) Bob £65 includes taxes & fees 20 Jan - 21 Jan [](https://www.expedia.co.uk/Sussex-Hotels-High-Point-Motel.h107253932.Hotel-Information) Lowest nightly price found within the past 24 hours based on a 1 night stay for 2 adults. Prices and availability subject to change. Additional terms may apply. [View all properties](https://expedia.co.uk/Hotel-Search?startDate=2026-02-02&endDate=2026-02-03®ionId=6328868&adults=2&sort=RECOMMENDED&openPlayBack=true) ## Top Grey Towers National Historic Site Hotel Reviews ![Appalachian Motel](https://images.trvl-media.com/lodging/10000000/9670000/9665700/9665655/45d9ec54_y.jpg) ### Appalachian Motel 10/10 Excellent "It's a very pleasant, comfortable place to stay with very nice inn keepers. The rooms are very clean and spacious. The views around the motel are beautiful...and you are very close to wonderful hiking trails and ski resorts." [](https://expedia.co.uk/Vernon-Hotels-Appalachian-Motel.h9665655.Hotel-Information) ![Sussex Motel](https://images.trvl-media.com/lodging/71000000/70390000/70385000/70384905/42635aa6_y.jpg) ### Sussex Motel 10/10 Excellent "The room was very clean, the location was great, and Jackie was courteous and professional making the stay a pleasant one." [](https://expedia.co.uk/Sussex-Hotels-Sussex-Motel.h70384905.Hotel-Information) ![Lakefront, Indoor Pool, Pvt Hot Tub, Pickleball Games, Fireplace](https://images.trvl-media.com/lodging/35000000/34630000/34628600/34628544/738daddb_y.jpg) ### Lakefront, Indoor Pool, Pvt Hot Tub, Pickleball Games, Fireplace 10/10 Excellent "Great host, great communication! Would come back we had a great weekend " [](https://expedia.co.uk/Bushkill-Hotels-Lakefront.h34628544.Hotel-Information) ![Mountain Creek](https://images.trvl-media.com/lodging/3000000/2900000/2899900/2899900/f09dc021_y.jpg) ### Mountain Creek 10/10 Excellent "easy check-in/check-out" [](https://expedia.co.uk/Vernon-Hotels-Mountain-Creek.h2899900.Hotel-Information) ![Pocono Mountain Villas by Exploria Resorts](https://images.trvl-media.com/lodging/26000000/25140000/25130800/25130750/85437eda_y.jpg) ### Pocono Mountain Villas by Exploria Resorts 10/10 Excellent "It was a good clean place and very quiet and the staff was nice and helpful I would recommend to come visit and I will come back " [](https://expedia.co.uk/East-Stroudsburg-Hotels-Pocono-Mountain-Villas.h25130750.Hotel-Information) ![Best Western Hunt's Landing Hotel Matamoras/Milford](https://images.trvl-media.com/lodging/1000000/30000/27300/27210/5acfc319_y.jpg) ### Best Western Hunt's Landing Hotel Matamoras/Milford 10/10 Excellent "Room was excellent " [](https://expedia.co.uk/Matamoras-Hotels-Best-Western-Hunts-Landing-Hotel-MatamorasMilford.h27210.Hotel-Information) ![High Point Motel](https://images.trvl-media.com/lodging/108000000/107260000/107254000/107253932/dad3e76a_y.jpg) ### High Point Motel 10/10 Excellent "Great place! Beds are comfortable and have great views of the landscape.Thanks Melanie for assisting me during my stay!" [](https://expedia.co.uk/Sussex-Hotels-High-Point-Motel.h107253932.Hotel-Information) ![The Bradstan Boutique Hotel](https://images.trvl-media.com/lodging/88000000/87420000/87410200/87410153/a17bcc8b_y.jpg) ### The Bradstan Boutique Hotel 10/10 Excellent "What a spectacular place on so many levels! Our “cabin” was as luxurious as one can get with high end everything including heated floors, jacuzzi tub, gas fireplace, and a wall of glass overlooking the snow covered woods. The breakfast included was amazingly delicious and diverse with the 2 lovely kitchen staff going above and beyond to offer me gluten free options such as a decadent chocolate brownie, muffins and French toast. Dinner at their Homestead restaurant was a treat also. To top it all off, the acres of grounds were beautiful to behold. My husband and I snowshoed around their lake which was peaceful and fun. They provided the snowshoes. This weekend vacation at the Eldred Preserve was possibly our best weekend getaway ever! And we have had many! Bravo and well done to everyone there!" [](https://expedia.co.uk/Eldred-Hotels-The-Eldred-Preserve.h87410153.Hotel-Information) ![Myer Motel](https://images.trvl-media.com/lodging/35000000/35000000/34990100/34990098/867346e7_y.jpg) ### Myer Motel 10/10 Excellent "Great- clean comfortable perfect! " [](https://expedia.co.uk/Milford-Hotels-Myer-Motel.h34990098.Hotel-Information) ## Hotels near other Grey Towers National Historic Site attractions ### Raymondskill Falls 4.4/5 (8 reviews) Explore the great outdoors at Raymondskill Falls, a lovely green space in Milford. While you're in the area, stroll along the waterfront. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=6328876) ### The Upper Mill 4.5/5 (2 reviews) Learn about the local history of Milford with a stop at The Upper Mill. While you're in the area, stroll along the waterfront. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=6328900) ### The Milford Knob You can find out about the history of Milford with a trip to The Milford Knob. While in this family-friendly area, you can enjoy the restaurants. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=974583461824233472) ### The Columns Museum You can spend time exploring the galleries in The Columns Museum in Milford. While you're in the area, stroll along the waterfront. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=6328889) ### Riverview Overlook Find out about the history of Milford with a stop at Riverview Overlook. While in this family-friendly area, you can enjoy the restaurants. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=974583312436158464) ### PWLPOA Beach Why not spend a lazy afternoon at PWLPOA Beach during your trip to Milford? While in this family-friendly area, you can enjoy the restaurants. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=553248635983988161) ### Mashipacong Island Commune with nature and explore the great outdoors at Mashipacong Island during your travels in Montague. While you're in the area, wander around the parks. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=907921757692862464) ### Hidden Acres golf Course Enjoy a round of golf in Sandyston at Hidden Acres golf Course. [See properties](https://www.expedia.co.uk/Hotel-Search?rfrrid=TG.LP..PointOfInterests®ionId=910087105766666240) ## Frequently asked questions ### What's the area like around Grey Towers National Historic Site? ### Where is the best place to stay close to Grey Towers National Historic Site? ### How many hotels will I be able to find near Grey Towers National Historic Site? ### If I need to cancel the hotel reservation for my stay near Grey Towers National Historic Site, will I receive a refund? ### What can I see and do near Grey Towers National Historic Site?