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

The Magical World of George Phar Legler.

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

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.

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

A reproduction of earth's many biomes.

A self-built castle made by a mysterious man.

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

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

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.

For 60 years, skiers have calmed their nerves with cocktails hidden along these slopes.

Thousands of mounted insects, and some live ones, hide within an otherwise ordinary shopping mall.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.

It's easy to see why this eclectic architectural wonder has been dubbed the "Spaceship House."

Home to New Mexico's longest bar, this watering hole also has a mining museum and a haunted history.

A warm desert spring holds one of the rarest species on earth.

The shattered remnants of a meteor that struck Santa Fe more than a billion years ago.

This towering volcanic plug stands out among the dramatic formations that dot this otherworldly desert valley.

At this research institute, the chile is king.

Some of the Old West's most notorious outlaws frequented this mining town.