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Explore St. Augustine

Castillo de San Marcos National Monument

The fort is the oldest and largest stone fort in the continental United States, built by the Spanish during 1672-1695 with blocks of coquina. The fort endures as the nation’s oldest and only remaining 17th-century stone fort. $15 ages 16 and up. Demonstrations held F-Su. Open daily from 9 am to 5 pm. Closed Christmas and Thanksgiving day.


1 S. Castillo Drive
St Augustine, FL 32084
United States