A river runs through this remote valley in a very unexpected way.

The fifth-longest natural arch in the world, and the longest outside China.

A small oasis not far from downtown Moab.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

Illegal drag racing two stories beneath Chicago’s streets.

An enthusiastically interactive mining museum that won't let black lung ruin the fun.

An annual festival celebrating Colorado's most famous frozen corpse.

Inspired by a music box, a small town Vietnam vet carved an entire carousel full of animals by hand.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

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

This deserted Gold Rush town is home to a Masonic lodge that, strangely enough, still holds meetings.

The burial grounds of a secret society includes fences topped with fake Tesla balls.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

Curios, scientific antiques, oddities for sale.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A small horde of mythical creatures lurk almost imperceptibly within the museum's wildlife dioramas.

A downtown park built on top of unclaimed graves.

Wall to wall taxidermy at Denver's oldest and most exotic steakhouse.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

One of the greatest heroes of the Titanic tragedy came from humble beginnings to this beautiful home.