An abandoned munitions storage facility with a rich architectural history.

No passport is required to eat around the world at this elegant restaurant.

A herd of plastic cows hangs out under this transmission tower in rural Georgia.

An abandoned railroad tunnel forgotten by time awaits inquisitive hikers.

This wondrous hideaway is suspended in a bamboo forest above a sanctuary for rescued llamas and alpacas.

This kitschy tavern is also home to rare early editions of "Treasure Island."

A curious whirlpool formation supposedly capable of entangling or engulfing branches, tree trunks, or whole rafts full of hapless tourists.

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

Where school buses go to die and be reborn as whimsical works of art.

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

Mai Tais and Navy Grog served up in one of the original tiki bars.

Hidden amid the old-world charm of Savannah is a museum dedicated to the world of oddities and criminal history.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

Ruins of a Carnegie family mansion on Cumberland Island.

Bad farming practices caused this unnatural natural wonder.

They call this long foot bridge a swinging bridge, but really it's the bouncing you have to watch out for.

One of the largest-ever mental hospitals now sits abandoned, surrounded by 25,000 unmarked graves.

A bizarre roadside attraction and the first instance of miniature golf in the world.

An abandoned 1920s school with a mysterious history.

This abandoned school has had many lives since the early 1900s, and all of them doomed.

This harrowing climb along West Virginia's jagged spires is one of the only Via Ferrata on America's east coast.

The tallest waterfall in West Virginia.

This abandoned mine and power plant was built atop land once given to Revolutionary War soldiers.