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

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

The eroded core of an ancient volcano is now accessible by a short hike.

This reclusive Hopi village in Arizona has been continuously populated longer than anywhere else in America.

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

An homage to everyone's favorite prehistoric cartoon family.

Bizarre lunar-like landscape with thousands of large stone "hoodoos."

This set of three large, volcanic hot springs is a favorite haunt for intrepid divers.

One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

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.

Dramatic river bend surrounds a natural red-rocked pedestal.

Despite its name, this route in southern Utah offers a heavenly day trip.

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

Giant pinnacles in the sun-scorched lands of Southern Utah have been nicknamed "white ghosts."

Rippling sand dunes frozen in the Arizona rock.

Local lore holds that Butch Cassidy took an escape route through Red Canyon's sandstone hoodoos after an attempted murder.

This quiet park's strange sedimentary spires were named after Kodak's color film.

Giant, natural amphitheaters made of delicate geological formations called "hoodoos."

Erosion and various mineral deposits give this striking canyon its distinct color and soft appearance.

A tunnel with windows, so you don't miss out on the impressive views.

The unusual patterns in this rock formation result from two distinct modes of weathering.

The hike through a narrow river flanked by the 2,000-foot-tall walls of Zion Canyon is one of the best in the world.