A museum dedicated to the history and exploration of both popular music and science fiction.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

A former sanitarium where soldiers were sent to recover in the healing waters of hot springs.

The only bridge in the United States where BASE jumping is legal without a permit year-round.

These falls, sometimes called the "Niagara of the West," still put on a good show at the right time of year.

Home to the deepest rift anywhere on Earth.

At this gas station in the middle of the desert, a convenience store has been carved directly into the rock.

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

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

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

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

The fifth-longest natural arch in the world, and the longest outside China.

Come for the speed, leave in love with the desert.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

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

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

A house carved into a rock in the 1940s.

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

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.

A gothic palace of endless stalagmites and pseudoscorpions waits within one of the world's most beautiful caves.

The longest living non-clonal organisms on Earth.

This open-pit mine is now an abandoned symbol of Bisbee's copper-mining heritage.

This church on a Tohono O'Odham reservation has stood since 1797.