This historic national monument located in northeastern Florida is the oldest masonry fort in the United States.
Step back in time with a visit to the Castillo de San Marcos National Monument, where you will find staff adorned in 18th century style garments, authentic weapons and artifacts, and incredible views of the oldest town in America. Located on the Matanzas River in St. Augustine, Florida is where you will find the Castillo de San Marcos, which also happens to be the oldest standing masonry fort in the continental United States. Built out of coquina limestone rock in 1672, the Castillo de San Marcos is full of a fascinating history that you can practically feel. The fort was built by Spanish settlers to defend the town from pirates and other rivals.
The Castillo de San Marcos offers entry for $15 to those 16 and up, and the pass is good for a consecutive week. Entry is free if you are under 16 (with an adult), a member of the military, or a senior citizen. Tours are conducted in the fort that are included in the admission fee where you will have the opportunity to learn all about the rich history and significance of the different areas within the fort. Canon firings and weapon demonstrations are done throughout the day on Fridays, Saturdays, and Sundays by rangers (weather permitting). You are free to walk the grounds of the fortress as much as you would like and can explore the various rooms that were once inhabited by soldiers and prisoners. You might also want to climb up the stairs near the canons to get one of the best views possible of historic St. Augustine and its waterfront.