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San Juan National Historic Site
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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

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Did You Know?
Castillo San Cristóbal is the biggest fortification built by the Spanish in America. It's construction began in 1634 and took approximately 150 years.
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Last Updated: January 07, 2011 at 08:23 MST