Description
St. Augustine, Florida, Castillo de San Marcos National Monument, Postcard. The postcard features a picture of the drawbridge entrance to the Castillo de San Marcos National Monument in St. Augustine, Florida, which is the oldest masonry fort in the United States. The fort was begun by the Spanish in 1672 and is a significant historical site.St. The postcard features a picture of the drawbridge entrance to the Castillo de San Marcos National Monument in St. Augustine, Florida, which is the oldest masonry fort in the United States. The fort was begun by the Spanish in 1672 and is a significant historical site.St.