Some of the Old West's most notorious outlaws frequented this mining town.

Historic, 19th-century wagon wheel ruts cut into soft volcanic ash.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A miniature village lies nearly forgotten in the forest by the side of a major highway.

In the middle of a remote desert town is a surprisingly opulent hotel.

All that remains of this abandoned coal town is a beautiful, haunting cemetery.

A nearly abandoned 19th-century town on the Palouse.

The century-old remains of an abandoned farm town in eastern Washington.

This former mining hub holds a surprising abundance of undisturbed relics from the Old West.

A landscape of massive spherical boulders are the main attraction in this Kansas State Park.

A classic mystery spot complete with spots that are said to make you shrink or grow when you stand on them.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

A popular rock that acted as a waymarker for American pioneers.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.

Creek water that starts here has a 50/50 chance of ending up in the Atlantic or the Pacific.

This volcano rises like a giant anthill from the plains below, with a road spiraling up to the rim.

This sparsely populated town offers a look back in time.

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

Supposed Massachusetts Grave of a pre-Columbus Knight Templar.

It's not a typo, now say it five times fast!

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

A Mars simulation in the southern Utah desert.

A small flooded ghost town with a few scattered structures remaining.