Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

The Magical World of George Phar Legler.

A Saint Nicholas-themed ghost town in the Mojave desert.

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

See massive fossils that are over 200 million years old in northeastern Arizona.

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

One of the largest, oldest, darkest, quietest motel rooms in the world.

A self-built castle made by a mysterious man.

Outsider Art Community.

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

A reproduction of earth's many biomes.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

An homage to everyone's favorite prehistoric cartoon family.

An abandoned facility that has become a place of ritualistic satanic worship, or so rumor has it.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Dramatic river bend surrounds a natural red-rocked pedestal.

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

Rippling sand dunes frozen in the Arizona rock.

The oldest operating cemetery in Denver is the eternal home of some of the Centennial State's most famous residents.

One of few remaining antique carousels with stationary animals in the U.S.

Metal water storage tank turned ethereal concert hall.

At 238 feet above the bottom of a gorge this span is known as the biggest thrill on the road to McCarthy.

Research missiles and rainbow auroras at the world's largest land-based rocket range.