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

Although it also features red, orange, and variegated cliffs of Navajo Sandstone, this state park is often overshadowed by its more famous neighbor.

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.

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

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

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

A late-19th century diversion canal built by hand crosses Bryce Canyon National Park and is still in use.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

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

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

This roadside stop between Goblin Valley and the Henry Mountains is the perfect location to view some of the region's natural wonders.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

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

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

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

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

A dangerous narrow-gauge railroad once traced a route through this striking canyon.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

A house carved into a rock in the 1940s.

The location where the iconic movie character declared it was time to go home.

When it was built in 1929, this historic bridge was the only place to cross the Colorado River for 600 miles.

Submerged lava formations create incredible waterworks.

This industrial area was the dumping ground for massive amounts of trash, some of which washes up as tiny bits of sea glass.