Pyramid home to an obscure religious group that practices modern mummification.

A Mars simulation in the southern Utah desert.

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.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

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

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

A replica that won't float away.

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

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

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.

Here, at the "world's longest art gallery," you'll find forty miles of ancient petroglyphs and pictographs.

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.

This geothermal hot spring hides beneath a slowly growing mineral dome.

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

An off-the-beaten path cave with an underground lake.

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

This giant steer-skull edifice refuses to die.

A self-built castle made by a mysterious man.

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

Rippling sand dunes frozen in the Arizona rock.

A $100,000 tumbleweed decorates an Arizona park and ride that got its priorities a bit tangled.