San Juan National Historic Site
Castillo San Cristobal
Castillo San Cristobal was built to guard enemy approaches by land to the walled city of Old San Juan. Construction on San Cristobal began in 1634 and finished in 1790, although modifications were made well into the 18th century. Covering 27 acres, San Cristobal is the largest Spanish fortification built in the New World, and from a perch 150 feet above the Atlantic shoreline, it provides panoramic views of the coast from Old San Juan to Condado and beyond.
Photo: J. Scott Graham