The 17th-century Florida fortress that took 300 years of attacks and never fell once
Shutterstock Castillo de San Marcos Walls Defeated Cannons The massive stone walls of Castillo de San Marcos in St. Augustine, Florida, have stood unconquered for over 350 years. You can walk through the original prison cells where famous Seminole leaders like Osceola and Wild Cat were held, and watch weekend cannon firing demonstrations on the … Read more