The world's longest known cave system.

One of the few surviving "Wigwam"-themed motels.

This public square capitalized on a single Eagles reference to bring some life back to an Arizona town.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

This schoolhouse for Black American children is one of the oldest remaining in southeastern Ohio.

The failure of one component toppled this entire bridge during rush hour.

The island residents are known for taking their quirky sense of humor with them to the grave.

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

An idyllic swimming pool tells the tale of Hemingway's trouble with women.

"We Seceded Where Others Failed."

A monument celebrating the idea of reaching inaccessible places.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The former home of the Nobel Prize-winning American writer is now home to dozens of six-toed cats.

A spiritual vortex among the red rocks in Sedona.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A Wild West jailhouse that slid down the mountainside.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

A bronze of the man in all his sinewy glory celebrates his longtime connection to the Ohio city.

The "mysteries" of this quintessential roadside oddity were almost destroyed by neglect but were saved by fans of kitschy wonder.

Rare recess caves fill this unbelievably beautiful Ohio park.

The only remnant of a small mining town is an abandoned railroad tunnel that is steeped in ghostly lore.

An abandoned asylum incorporated into a college campus.