Castillo de San Marcos National Monument, 1 South Castillo Drive, St. Augustine, was built by the Spanish to defend Florida and the Atlantic trade route. It is the oldest masonry fortification in the continental United States. Phone: 904-829-6506.
Fort Matanzas National Monument, 8635 A1A South, St. Augustine, is a coquina watchtower completed in 1742 to guard the southern approach to Spanish St. Augustine. It sits on Rattlesnake Island in the Matanzas River. Phone: 904-471-0116.
Fort Caroline National Memorial, 12713 Fort Caroline Road, Jacksonville, tells the story of a failed French colony in Florida through a fort exhibit. It is part of the Timucuan Ecological and Historic Preserve, which also includes Kingsley Plantation. Phone: 904-641-7155.
De Soto National Memorial, 8300 De Soto Memorial Highway, Bradenton, marks the May 1539 landing of Hernando de Soto's army in Tampa Bay, the start of a four-year expedition. Phone: 941-792-0458, extension 102.
Fort Pickens, 1400 Fort Pickens Road, Pensacola Beach, is a Civil War era fort in Gulf Islands National Seashore. You can tour it with a ranger or on your own with the park's mobile app. Phone: 850-934-2600.
Fort Jefferson, on Garden Key in Dry Tortugas National Park, is the largest masonry fort in the western hemisphere, and it was never finished. The park is almost 70 miles west of Key West and can be reached only by boat or seaplane. Phone: 305-242-7700.
Canaveral National Seashore, between New Smyrna Beach and the Kennedy Space Center, protects ancient Timucua shell mounds. Phone: 386-428-3384.
01What is the oldest city in Florida?
St. Augustine, in St. Johns County. Pedro Menendez de Aviles came ashore there on September 8, 1565, and the city describes itself as the oldest continuously occupied settlement of European and African-American origin in the United States.
Read the answer →02How many national parks are in Florida?
Three: Everglades, Biscayne and Dry Tortugas. The National Park Service runs eleven sites in the state in all.
Read the answer →03How do you get to Dry Tortugas National Park?
By ferry, seaplane, private boat or a permitted charter: the park is about 70 miles west of Key West and no road or bridge reaches it.
Read the answer →04St. Johns County
Population 306,934. Typical home sale price $516,543 in the three months ending June 2026; typical condo $305,000 in May 2026. Median household income $109,839; 21.1% of residents are 65 or older. (Source: Redfin; U.S. Census Bureau, American Community Survey, published January 2026)
Open the county guide →