A mysterious spot where the laws of gravity seem not to apply.

Things roll uphill on this Mexican street that seems to defy gravity.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

A mysterious light of unknown origin on the backroads of Missouri.

A 35-foot-tall fork stuck in the ground outside an office building in Missouri.

An unexpected but incredible collection of wildlife dioramas spanning rainforests, swamps, forests, and plains.

European castle ruins in an American state park are actually the product of death and grief.

Built following the War of 1812, this fort has withstood hurricanes for centuries.

This ghost town houses the remains of Alabama's old state capital.

A collection of huge Pre-Colombian structures in Alabama.

When you can't get to the Pacific, just go to Florida.

Grab a slice of pizza next to the remains of the "human monkey" who ran for mayor.

A small poultry graveyard in the courtyard of a popular Key West watering hole.

A former hospital is now home to a pizza parlor and maybe a few ghosts.

Where serial killer Aileen Wuornos drank her last beer.

A local landmark with generations of spraypainted messages, and more being added each day.

Pensacola's UFO home has withstood many hurricanes—just as the experimental 1960s design intended.

The "worst battleship ever built" is enjoying a grand second act, submerged 30 feet in the Gulf of Mexico.

Though nicknamed the “Russian Freighter,” this ship was actually sunk off the coast of Pensacola by the U.S. government in a top-secret operation.

The 44,000-ton aircraft carrier was purposely sunk to create an artificial reef teeming with life.

One of the best places in Florida to spot rare, carnivorous pitcher plants.

The scuba diving training facility was named for the steam that rises from the cave's chimney.