This architectural triumph is the only Frank Lloyd Wright house in Alabama.

You'll need cowboy boots to trek to this old-fashioned saloon nestled in a giant natural cave.

River pirates, murderous bandits, and serial killers used this Illinois cave as their debauched hideout.

A roadside music shop featuring a confounding series of folk art installations.

One man has spent decades faithfully constructing this unique brick and cinderblock castle.

An impressive collection is dedicated to the legendary beast.

This former maximum-security prison is creepy, sobering, and supposedly haunted.

Enormous lake at the bottom of a unique cave system.

In Rickwood Caverns, visitors can travel hundreds of feet underground and see beautiful formations unique to the region.

This structure among the trees was the result of divine inspiration.

Crumbling Kennedys and a decaying Tecumseh are just some of the haunting remains of one man's cement art trail.

Home of an evil witch famous within southern folklore.

The mysterious wonder of an underground waterfall is illuminated by multicolored lights.

More than five miles of underground passageways.

Labor provided by Great Depression-era programs restored these 25,000 acres in Tennessee.

One person's lost luggage is another person's treasure.

This large cave is a summer home to thousands of bats and has a rich history dating back to prehistoric times.

An ancient cave system in Tennessee’s Appalachian foothills converted to a 1,200-person music venue.

This mansion turned restaurant was once a pitstop for Al Capone during his travels.

Mysterious library of an infamous financier and spiritual seeker.

A natural sandstone bridge hidden in the Sewanee forest.