This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

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

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

Few things look more out of place than the electric blue ponds in the reddish-brown desert of Utah.

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

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

What's a diner from the 1939 World's Fair doing in a remote Utah mountain town?

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

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

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

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

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

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

Dig for your own trilobites in this goldmine of invertebrates.

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

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

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

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

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.

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

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

This rustic old building is said to be the most photographed barn in America.

Long before guestbooks and hotels, frontier travelers signed their names on this rock face.