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5 expert recommendations
Climb the ramparts and stroll the grounds at San Cristobal Castle, the largest fortification built by the Spanish in the New World. Full review →Wear sunscreen or cover up.
The trompe l'oeil painting lining the inside of the dome makes the Catedral de San Juan Bautista worth a peek.
San Cristóbal was known in the 17th and 18th centuries as the Gibraltar of the West Indies. Full review →
Its walls rise more than 150 feet (46m) above the sea—a marvel of military engineering. Full review →Be sure to see the Garita del Diablo (the Devil's Sentry Box)
The fort has a fascinating museum, a store, military archives, a reproduction of a soldier’s barracks, and stunning Atlantic and city views. Full review →