Witnessing the might of this dessert-colored desert waterfall is a rare, powerful treat.

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

Ancestral Puebloan ruins, natural arches, and box canyons abound in this seldom-visited corner of Monument Valley Navajo Tribal Park.

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.

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

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

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

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

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

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.

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

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

Rippling sand dunes frozen in the Arizona rock.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

The only thing stranger than stumbling onto these philosophical musings is the story of the homesteader who created them.

These ruins of a pre-Columbian cliff village are among the most beautiful and well preserved in New Mexico.

Travelers leave tea kettles in a remote part of Death Valley as part of a mysterious, decades-old tradition.

The most isolated mailbox in America lets desert travelers record their passing.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

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

The stone-covered graves lie within the ruins of an Old West ghost town.