One of the oldest, tallest, and most haunted lighthouses in America.

An octet of classic chrome trailers speared into the ground act as a tribute to the silver bullets of the open road.

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

Ruins of an old sugar mill sitting quietly next to a park in rural Florida.

This natural spring is the winter home to the largest gathering of manatees in the world.

Meet manatees face-to-face at this zoo for native species.

This impeccably preserved farmstead is a time capsule of a Pulitzer Prize-winning novelist's life.

A haunted hill that supposedly defied gravity.

Possibly the most beautiful carillon in the world, set atop Iron Mountain in Florida.

A Florida college boasts the world's largest single-site collection of structures designed by Frank Lloyd Wright.

This Victorian mansion is part heritage museum, part architectural oddity, and part ghost story.

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

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

Mariners once used this prehistoric landfill as a navigational landmark.

Faded remnants of the entrance to a Mediterranean-style resort that never fully came to life.

The third tallest lighthouse in America once guided author Stephen Crane to safety.

These mysterious ruins are hidden amid this sleepy coastal city.

Despite being made of a seashell mortar, the crumbling remains of this historic Florida mill are still standing.

Measuring approximately 200 feet long, Swampy is the world's largest alligator-shaped building.

Deep in the Richloam wilderness, a century-old country store is stocked with plenty of stories.

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

Electrical pylon in the shape of Disney's beloved mouse.

Site of the longest gun battle in FBI history.

Disney World's very first waterpark is now an abandoned ruin being reclaimed by the swamp.