Work / monument · monument

Castillo de San Marcos

1672–1695 · 17th century

The Castillo de San Marcos is a Spanish masonry fort at St. Augustine, Florida, built between 1672 and 1695 from coquina, a local shell stone. It replaced a series of wooden forts and withstood English sieges in 1702 and 1740, which burned the town but never took the fort. The oldest masonry fort in the continental United States, it is now a national monument.

Castillo de San Marcos
Image: Schwerdf · CC BY 4.0 · Wikimedia Commons

Mentioned in 1 state history

Spanish Florida

See also

Cite this entry
APA
The Epoch Institute. (2026). Castillo de San Marcos. In The Epoch Institute Encyclopedia. https://the-epoch-institute.org/encyclopedia/castillo-de-san-marcos
MLA
“Castillo de San Marcos.” The Epoch Institute Encyclopedia, The Epoch Institute, 2026, https://the-epoch-institute.org/encyclopedia/castillo-de-san-marcos. Accessed .
Chicago
The Epoch Institute. “Castillo de San Marcos.” The Epoch Institute Encyclopedia. 2026. https://the-epoch-institute.org/encyclopedia/castillo-de-san-marcos.
Harvard
The Epoch Institute (2026) ‘Castillo de San Marcos’, The Epoch Institute Encyclopedia. Available at: https://the-epoch-institute.org/encyclopedia/castillo-de-san-marcos (Accessed: ).

Last reviewed October 2026Random entry ↻