Where manatees are the snowbird vacationers in these balmy Florida springs.

The so-called "world's shortest river" is actually a window into a cave.

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

The remains of an idyllic small town built for the film 'Big Fish' still stand around a rundown main street.

Despite being burnt down multiple times, the ruins of this South Carolina church are still standing.

The remains of one of America's first radiation testing grounds still rest ominously in a Georgia forest.

The ruins of a cotton mill that was burned in the Civil War are still hidden in a Georgia forest.

The highest point in Alabama was almost completely deforested, but is now home to protected towers and trees.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

This protected reserve is home to a rare and beautiful species of flower.

The ruins of a creative scholar's fantastical unfinished sanctuary act as his massive gravestone.

This fairytale-inspired cottage was created by a university literature professor.

The ruins of a once massive plantation are now a private residence hidden in the Florida wilderness.

The haunting remains of a failed housing development can still be found behind the big box stores that were to anchor them.

Location of a reliquary containing bone fragments of 18 saints.

America's greatest forgotten garden and the former stomping grounds of Son of Sam.

A treasure trove of pathological, forensic, parasitological, and anatomical specimens.

The world's largest reclining Buddha, the Giant Buddha of Mudon.

Where an entire elephant skeleton, a snakeskin table runner, and thousands of animal remains become art.

Florida castle built with aluminum printing plates.

The world's highest and most dangerous infinity pool lies at the precipice of Victoria Falls.

Highly unusual subterranean stupa and adjacent cave monastery.

Secluded amid upstate New York’s Adirondack Mountains lies this subterranean emblem of a nation on the brink of nuclear war. And it's for sale.

The most unloved grain elevator in Brooklyn was a “Magnificent Mistake.”