At the tallest peak in Colorado, an electrifying mix of thin air, lightning, and rivalry.

The Denver airport is guarded by a 32-foot-tall sculpture of a demonic horse.

Silver in the hills led to the speedy creation of this boom town and a lack of it saw the town abandoned nearly as quickly.

A little-known hot spring haven right below the highway.

At this Denver landmark, the meals are compulsory, the sopapillas are complimentary, and the insanity is everywhere.

Wondrous sandstone hoodoos where Native Americans collected clay for pottery, 9,000 years ago.

Paranormal experiences in this hotel's room 217 led Stephen King to write "The Shining."

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

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

An enormous image of Utah's salt flats made entirely from tape.

This lava formation earned its whimsical name from the log-like formation of it stones.

A proto micro-nation sometimes populated by artists, surrounded on all sides by a Utah most barren.

The highest peak in Utah is the hardest to reach, but only if explorers choose the hard way.

Step into the cool deep past and unknown future of who begat who.

Jurassic Park—A Still Life.

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

Oddly shaped rock formation, misassociated with a nearby utopian community.

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

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

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