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San Juan National Historic SiteSan Cristobal Entrance
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San Juan National Historic Site
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A Historical Overview of Colonial Puerto Rico: The Importance of San Juan as a Military Outpost
Fort San Cristobal  

Did You Know?
Fort San Cristobal 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: September 11, 2008 at 23:56 EST