• Soldiers marching to the entrance of Castillo San Felipe del Morro

    San Juan

    National Historic Site Puerto Rico

For Teachers

Fortifications of Old San Juan: Guardians of the Caribbean (Teaching with Historic Places)Discover how Spanish fortifications on the island of Puerto Rico helped protect Spain's expanding interests in the New World.

La versión en español Los Castillos del Viejo San Juan: Guardianes del Caribe

Did You Know?

Santiago Gate

Part of the walls of San Juan NHS Fortifications were demolished in 1897 to allow the city to grow and develop.