The largest wildlife crossing in Utah allows local fauna to safely traverse the six-lane Interstate 80 at Parleys Canyon.

A stoic rock cairn is all that remains to remember one of the more brutal instances of frontier treachery in American history.

Largest man-made excavation on earth!

Hundreds of drawings left by the land's previous inhabitants remain mysterious.

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 geothermal hot spring hides beneath a slowly growing mineral dome.

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 museum remembers the tough Mormon trek across America through an intriguing array of artifacts.

Rippling sand dunes frozen in the Arizona rock.

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