An Andalusian-style castle, built during the 1930s by the rum-making Serrallés family, this Spanish Revival beaut is built atop the most iconic hilltop along the southern coast. Architect Pedro Adolfo de Castro, also an accomplished poet and musician, designed the residence as well as some 100 other mansions. Walk through the huge courtyards and enjoy the panoramic views from its breathtaking parlors and terraces. The dining room is entirely carved from wood, with a ceiling cut into exquisite figures and scenes; the handmade furniture follows this same intricate, artisanal design. There’s a compelling documentary on the family and its rum tradition in the theater as well as photographic and historical exhibits, plus a small cafe and souvenir shop. Outdoors are terraced gardens and a butterfly area, a beautiful spot to take in views of the city. You’ll need to take a taxi here if you don’t have a car.