Ancient pueblos built into the base of a natural canyon wall.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

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

This historic national park is covered in the stunning ruins of red rock pueblos.

A classic Route 66 landmark that was built with scrap lumber and is held together with kitsch and puns.

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

A phenomenal assembly of pueblos in New Mexico is the most complete example of ancient ruins north of the border.

This isolated outpost was once the only place to cross the Colorado River for hundreds of miles.

Dramatic river bend surrounds a natural red-rocked pedestal.

Most-visited and most-photographed slot canyon in the American Southwest.

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

A ghost town that held steady longer than most, but finally gave up the ghost.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This rugged area of red rocks and arches is often considered one of the most beautiful places on Earth.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

Preserving the remains of Native American cultures which otherwise would have been submerged behind Hoover Dam.

The drama of nature in full effect in this Nevada State Park.

Twelve plaster figures inspired by da Vinci's famed painting haunt the desert landscape above a real-life ghost town.

The most magnificent bottle house in a town strangely full of them.

A land of debatable treasure.

Odd outsider art installations surround a Gold Rush-era ghost town.

An abandoned Jazz Age dream home and con man's hideout in Death Valley.