The graffiti-covered ruins of an abandoned trading post in the middle of Navajo Nation.

This bomb shelter-themed bar has barely changed since it opened.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

The largest and most well-preserved petroglyph site in the Verde Valley.

This reclusive Hopi village in Arizona has been continuously populated longer than anywhere else in America.

The shop's owner has spent decades in the desert wearing nothing but a strategically placed sock.

Along the old Route 66 is an abandoned trading post made from old telephone poles, built by a former circus clown.

This sanguine boulevard was named after a deadly cowboy bar fight.

Legend says train robbers stashed their gold within the depths of this unusual cave.

One of the world's largest telescopes, stares into the night sky with two huge mirrors.

Once the product of an inexplicable gold strike, this ghost town is now home to one man and his love of classic machines.

A natural history wunderkammer in the middle of the desert.

These free-roaming horses were once destined to disappear from the land.

An Arizona museum with a collection of pharmaceutical oddities, including a jar of a gangster's chewed gum.

Don't blink or you'll miss it.

This 40-room dwelling tucked within a cliff was built by the basin's prehistoric residents.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.

This golf ball–shaped former desert real estate office now houses a UFO museum.

The artist James Turrell is repurposing an extinct volcano crater as an observatory to experience the cosmos.

A stealthy Apache hideaway that became the haunting site of a mass grave.

An arsenic-filled pool in the Grand Canyon takes on the appearance of a giant, overflowing pumpkin.

Eons ago, a rushing lava river formed this pristine passage through solid rock.

A reproduction of earth's many biomes.

In a 345-million-year-old cave that's 200 feet underground, dinner awaits.