Castillo San Cristóbal

Castillo San Cristóbal - Credit: Wikimedia Commons

Castillo San Cristóbalwww.nps.gov National Park Service - San Juan National Historic Site - The Gibraltar of the Caribbean - Consulted el 2014-11-29 is a fortress in San Juan, Puerto Rico. It was built by the Spanish to protect against land-based attacks on the historic city of Old San Juan. It is part of San Juan National Historic Site. Read more on Wikipedia

type: historic site
date from: 1783

Source: en.wikipedia.org