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

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

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

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

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

A reproduction of earth's many biomes.

A self-built castle made by a mysterious man.

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.

Dramatic river bend surrounds a natural red-rocked pedestal.

Rippling sand dunes frozen in the Arizona rock.

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

The best Tiki bar in Las Vegas.

The man who was president for only one day and spent most of it asleep.

The world's second largest rocking chair is found on Route 66 in Cuba... Missouri.

A big museum full of little worlds.

A museum celebrating the Victorian obsession with hair art.

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

Outsider Art Community.

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

An homage to everyone's favorite prehistoric cartoon family.

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

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

The body of one of the world's most famous outlaws is covered in cement and iron to prevent it from being stolen.