Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

Settled by the Church of Jesus Christ of Latter-day Saints in 1859, this abandoned frontier town has appeared in several films.

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

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

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

A sculpture for the sun and stars, created by Nancy Holt.

A replica that won't float away.

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

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

A house carved into a rock in the 1940s.

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.

According to local legend, a tree grew from the stake that killed this alleged vampire. In reality, he probably died from influenza.

The giant stump of the once towering cottonwood where Ute people held tribal meetings.

This three-mile concrete levee in Pueblo, Colorado was transformed into the world’s longest painting.

Two creeks flow out of either end of this canyon in opposite directions.

A coal fire has been burning underground here since 1896.

A fake mine that was made using real mining techniques which is also used as a community center.

These decaying bridges 1,000 feet high are a reminder of the skill it took to cross the Colorado Rockies by rail.

This razorback ridgeline has doubled as a scenic drive since the early 1900s.

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

The wreckage of a World War II bomber is hidden high in the Colorado wilderness.

One of the largest Buddhist stupas in North America is built of concrete designed to last 1,000 years.

The haunted reputation of these abandoned Colorado train tunnels is probably not helped by the terrifying spiked fence.