{"version":"1.0","type":"card","id":"c20a0669-042b-4f28-9648-e56a226d1ea0","url":"https://stacklist.com/card/c20a0669-042b-4f28-9648-e56a226d1ea0","title":"Castillo de San Marcos National Monument","source_url":"https://nps.gov/casa/index.htm","note":"The oldest masonry fort in the continental U.S., built by the Spanish between 1672 and 1695 in downtown St. Augustine. Visitors can tour the fort, watch cannon-firing demonstrations, and explore over 450 years of history.","image":{"url":"https://ucarecdn.com/9e7a2ad0-ba89-4051-8211-9e51936d1e2c/","alt":"Castillo de San Marcos National Monument","width":575,"height":345},"stack":{"id":"7a6531f9-0d84-4db4-8865-2333983a9945","title":"Historic Sites & Attractions in St. Augustine","url":"https://stacklist.com/c/places/stack/7a6531f9-0d84-4db4-8865-2333983a9945"},"created_at":"2026-07-30T04:00:20.719Z","updated_at":null,"aco":null,"_links":{"self":"/api/public/card/c20a0669-042b-4f28-9648-e56a226d1ea0.json","html":"https://stacklist.com/card/c20a0669-042b-4f28-9648-e56a226d1ea0","md":"/api/public/card/c20a0669-042b-4f28-9648-e56a226d1ea0.md","stack_json":"/api/public/stack/7a6531f9-0d84-4db4-8865-2333983a9945.json"}}