Stock photography, photos: Fort, St. Augustine, Florida Stock photos of Castillo De San Marcos, St. Augustine, Florida Photograph: © James Schwabel Click for a larger image and more information Keywords associated with this stock photo: people, sightseeing, tourists, u.s.a., security, horizontal, strong, southeast, south, historic, united states, stable, fl, solid, america, florida, u.s., fort, power, southeastern, usa, strength, St. Augustine, travel destination, us, tourist, southern, st augustine