The world's longest known cave system.

Everything in this miniature world was handmade from matches, paperclips, wires, tin cans, and other everyday objects.

A unique museum dedicated to the Gullah-Geechee people, housed within an old oyster cannery.

A stockpile of childhood lunch pails turned collectibles.

Shaped like a big top tent, this memorial honors the victims of a terrible train wreck.

The only zoo where you can buy animals that won't need feeding.

This museum dedicated to an oft-overlooked support industry features a surprisingly moving brass diorama of a man being saved from a sinking car.

More than five miles of underground passageways.

An impressive collection is dedicated to the legendary beast.

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

An abandoned water sports stadium that has become a haven for graffiti and decay.

This beautiful Miami garden was designed as a laboratory for tropical plants.

A perfect circle of twenty-four mysterious holes dates back to prehistoric time.

Colloquially known as "the lynching memorial," this is the United States' first memorial to the victims of racial terror at home.

Abstract marble carving for an 8.5-pound rock.

Florida’s half-sized replica of the Vietnam Veterans Wall.

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.

Mass graves and Victorian monuments mark the history of Memphis in this 19th century cemetery.

The bad-ass ride of a soul legend, housed in one of the world's few soul museums.

Home to drunken tower-climbing goats... seriously.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.

The world-record holder for the longest bridge stretching continuously over water.

The permanent home of a 1960s traveling museum of tiny historical dioramas.