• Cannon firing on the gundeck of the Castillo de San Marcos

    Castillo De San Marcos

    National Monument Florida

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The Cannons of the Castillo

Click on the links below to view picture postcards of the cannons currently on display at the Castillo. (You'll need the latest version of Adobe Acrobat Reader to view these files. You can download it for free on Adobe's web site.)

Postcard 1 - Spanish Iron 3lb

Postcard 2 - Spanish Bronze 2lb

More to come!

Did You Know?

Castillo casemate, or room, which was primarily used for storage.

The Castillo de San Marcos is built with the unique limestone, "coquina".  Made of many tiny shell fragments and sand lightly bound together with calcite, it has survived cannon balls and hurricanes but is very fragile to human contact. Castillo de San Marcos National Monument, Florida