You will arrive in a walled city that in 1680 brought the Portuguese crown, with military and civilian envoys, to watch the Spanish ships passing through Buenos Aires, looking for gold, silver and precious stones. You will know the precarious constructions of the time, its handmade roofs, its lanterns and stone streets with natural drains, in a city anchored in time and magically preserved with its military field gate, its drawbridge and its gunboats.