• The Castillo de San Marcos National Monument is a historic fortress built in the late 17th century.
• The fort is made of coquina, a type of limestone found in the area, and its distinctive architecture showcases Spanish colonial influence.
• Visitors can explore the fort's well-preserved bastions, walls, and interior chambers, gaining insights into its strategic role in protecting the city during various conflicts.
• The site offers guided tours, exhibits, and educational programs, allowing visitors to delve into the rich history of the region and experience a glimpse of the past.

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