A once popular resort—said to be the vacation spot of gangster Al Capone—now remains abandoned in the woods of Arizona.

A partial tunnel blasted into a steep ridge is all that remains of a failed railway across Arizona.

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

Thousands of Mexican Free-Tailed Bats soar around an abandoned storm drain at sunset each summer.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

Dramatic river bend surrounds a natural red-rocked pedestal.

A kaleidoscopic warehouse-maze of handmade neon signs.

Although it appears ancient and mysterious, the quirky folly was actually built 200 years ago by an eccentric estate owner.

The ghosts of Britain's telecommunication past sit rusting away in a small village in England.

One of the oldest and certainly best preserved Cistercian abbeys still in existence.

The remains of a former logging boom town, crumbled away in the forest.

The second tallest railway trestle bridge in America.

A (slightly) grownup take on the classic retro arcade.

Local legend has it that an old, decaying staircase outside this cemetery is haunted by dozens of ghosts.

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

Shoreline strewn with the remains of ghostly fallen trees.

Native American burial mounds? Giant gopher dens? No one knows what created the Mima Mounds.

A little piece of the Shire is hidden behind a plant nursery in Port Orchard, Washington.

A beautiful final resting place for some of the noteworthy deceased.

Make your reservation to have coffee with some kitties.

This family mausoleum is steeped in symbolism and looks more like a fantasy location than a grave.

Rustic natural hot springs in the deciduous rain forest.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.