Castillo San Cristobal

Renowned as the largest Spanish fort built in the Western Hemisphere, Castillo San Cristobal is a San Juan National Historic Site. Set on over 27 acres and rising 150 feet above sea level, the fort features amazing views of the city, El Morro and the piers. 
Also called the Saint Christopher Castle, this amazing fortress guarded the east of Old San Juan and was instrumental in repelling the invasion of Sir Ralph Abercrombie in 1797.