The ruins of a once-thriving sugarcane plantation that was burned in the Second Seminole War.

The ruins of a Florida miracle spring resort make it seem like a wonder that this was ever a health spa.

After the attack on Pearl Harbor, rocks and fossils from every U.S. state were collected into a pyramid of national unity.

Manatees congregate around a power plant's discharge canal where the water is especially warm.

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.

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

It's a pretty creepy lock-up.

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

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

When this test site was abandoned, they didn't even bother to take the rocket with them.

This picturesque ghost town is located on the banks of the Suwannee River.

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

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

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

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

North Central Florida's largest flea market and a weekend roadtripper's dream.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

This Florida sinkhole hides a rainforest-like micro-environment in its depths.

This 140-year-old beacon off the Florida Keys marks the wreck of a Navy ship that once roamed the Caribbean hunting pirates.

Located within a historic park, the beacon is the oldest standing structure in Miami.

Mariners once used this prehistoric landfill as a navigational landmark.

Where serial killer Aileen Wuornos drank her last beer.

A mysterious monument meant to be a guide into "an Age of Reason" was destroyed after an apparent bombing.