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Castillo de San Marcos National MonumentThe arch supports the Castillo's only staircase to the gundeck.
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Castillo de San Marcos National Monument
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1642 map showing the ancient coast of florida  

Did You Know?
The Castillo de San Marcos was originally constructed to defend Florida against pirates hunting the Spanish treasure fleets traveling along the Gulf Stream. Castillo de San Marcos National Monument, Florida

Last Updated: July 24, 2006 at 22:37 EST