After Havre burned down, the best place to build was under the ashes.

This museum glorifies the humble potato.

This museum explores the grim reality of life in the earliest British colonies in America.

An abandoned town is hidden in Great Smoky Mountains National Park.

More than five miles of underground passageways.

The site of the one of the most deadly train wrecks in American history.

The small cave that housed Tennessee's "first citizen."

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

Better known as the "Body Farm," this unique research facility has been studying how human bodies break down since the 1980s.

Wild lights and sound effects turn a walk through some caves into an eye-popping 1960s tourist attraction.

All that's left of the quintessential "cabin in the woods."

Home of an evil witch famous within southern folklore.

Enormous lake at the bottom of a unique cave system.

A small Wyoming town is home to the state's oldest-operating soda fountain.

No Gordon Lightfoot song, only a barebones monument to greed.

The crumbling structure is a rare surviving relic of the area's bygone mining industry.

A small town built on an abandoned airfield has former runways as streets and a bar and grill in an old airplane hangar.

Population: 1.

This mining town boomed in the Atomic Age when uranium was gold, only to be abandoned when the industry collapsed.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

Granite outcropping that the state's tourism bureau doesn't promote because of its delicate ecosystem.

These strange large stones served as a campsite and lookout post for generations of Native Americans.

Inside this old train depot resides a multi-line model train covering western North Carolina.