An artificial crater field that trained astronauts for lunar exploration.

This raised bulls-eye visible from space was the subject of an intense geologic controversy.

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

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

A mysterious spirit totem at the edge of Navajo lands.

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

The story of Two Guns, Arizona could easily be described as a Shakespearian tragedy on Route 66.

The remains of this hell for leather wild west town can still be found in the Arizona desert.

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

Oddly shaped rock formation, misassociated with a nearby utopian community.

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

Colorado's only true geyser is hidden within the San Juan National Forest.

One of the most extensive and well-preserved collections of dinosaur footprints in North America.

A working cattle ranch with remarkably well-preserved prehistoric petroglyphs and ancient ruins.

Petroglyphs, bird watching, and a 100-year-old Ranch in one location.

A frozen oasis lies beneath the scorching New Mexico desert.

A whimsical roadside community of little metal people.

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

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

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

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

More than 300 years ago, a revolt at this Hopi pueblo shaped the future of the American Southwest.

Hidden inside this Arizona fast food franchise is an in-depth exhibit on the famed WWII counterintelligence program.

Legends surround this jagged rock formation in the New Mexico desert.