Landmark

Castillo de San Marcos

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The Castillo de San Marcos is a 17th-century Spanish stone fortress in St. Augustine, Florida, and the oldest masonry fort in the continental United States. Visitors can explore its thick coquina walls, gun decks, and dungeons while learning about its history of sieges and changes of ownership. The fort offers stunning views of Matanzas Bay and interactive demonstrations like cannon firings.

Don't miss

  • Walk the ramparts for panoramic views of St. Augustine and the bay.
  • Watch a live cannon-firing demonstration by costumed interpreters.
  • Explore the dark, cool interior rooms and see exhibits on colonial life.

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Ways to visit Castillo de San Marcos

You can usually visit on your own. A tour is worth it for transport, a guide, or combining nearby sights into one day.

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