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

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

The inspiration for H.P. Lovecraft's horror stories and Batman's Arkham Asylum is now a condominium complex.

A fiery crater has been burning in the Karakum Desert since 1971.

This astonishingly geometric cave has inspired everyone from Jules Verne to Pink Floyd.

A beautiful, dense forest in the shadow of Mount Fuji, with a tragic reputation.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

On Japan's Tashirojima Island, cats are king.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Around 100 sculptures from artists all over the world decorate the hiking trails surrounding this locale.

A religious-themed park filled with folk art to bring biblical stories to life that fell into disrepair and now being restored.

A cave dug by a man directed by ghosts to find pirate treasure.

A Texas-sized particle collider that was abandoned due to its Texas-sized budget.

The remains of diamond fever taken over by the desert.