Castillo de San Marcos National Monument

geographical name

historic site in northeastern Florida containing a Spanish fort

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“Castillo de San Marcos National Monument.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/Castillo%20de%20San%20Marcos%20National%20Monument. Accessed 7 Jul. 2026.

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