When the Union abandoned a fort in Florida, they left behind a single soldier as caretaker. When the Confederacy marched on the fort, the lone soldier refused to surrender without a receipt for the fort. He received one, and the fort was taken without a shot fired.

Castillo de San Marcos

Not to be confused with Castle of San Marcos (El Puerto de Santa María).

Aerial view photo taken from northwest. Although the fort had a water-filled moat at the time, it was originally a dry moat.

The Castillo de San Marcos (Spanish for “St. Mark’s Castle”) is the oldest masonry fort in the continental United States; it is located on the western shore of Matanzas Bay in the city of St. Augustine, Florida. The Castillo was designed by the Spanish engineer Ignacio Daza, with construction beginning in 1672, 107 years after the city’s founding by Spanish Admiral and conquistador Pedro Menéndez de Avilés, when Florida was part of the Spanish Empire. The fort’s construction was ordered by Governor Francisco de la Guerra y de la Vega afte… Continue Reading (15 minute read)