Location of a reliquary containing bone fragments of 18 saints.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

Intertwined, interspecies trees which locals believe can grant boons to lovers.

Two men built this castle on the Florida coast as an artistic “landscape sculpture.”

A tribute to Ponce de Leon's supposed quest for eternal youth.

Arrr! The most authentic collection of pirate artifacts in the world... matey.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

The collection of 80+ pieces created between the years 1100 and 1500 is intended to be seen, heard, smelled, touched, and tasted.

A Circus legend leaves an unexpected endowment.

Strange beasts lurking in a garden are all that remain of a quirky, short-lived theme park.

One of the only Florida forts to remain in the hands of the Union all through the Civil War still stands as a historic stronghold.

One of the best places in Florida to spot rare, carnivorous pitcher plants.

This now-deactivated naval base defended the Florida coast for centuries.

A replica of one of the more than 15,000 civilian lookout towers that lined the U.S. coast during World War II.

Disney's abandoned animal island is now an overgrown ruin that was almost the coolest attraction ever.

A vast array of tropical plants collected by a vacationing couple.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

A time capsule of Floridian history fights to survive on the banks of Chokoloskee Bay.

The smallest post office in the United States is no bigger than a broom closet.

For 32 years the famous Ringling Bros circus troupe spent winters in this sunny spot in Florida.

This ancient sinkhole-turned-healing-pool is a treasure trove of archeological discoveries and may even be the Fountain of Youth.

The timeworn "Yankee Stadium" of the fastest game in the world isn't going anywhere.

The behemoth beasts engaged in an epic battle is the second-tallest statue in the contiguous United States.