A short but powerful waterfall resides amid Colorado’s Great Sand Dunes.

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

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

Thanks to a quirk of elevation this gift shop produces magic doughnuts that are found nowhere else on Earth.

When ecosystems collide in the arid Southwest.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

Crystal clear lake with a shoreline of travertine located in a Colorado canyon.

A crack flared at the base provides a pathway completely through a sandstone ridge near Moab.

It's safe—and permitted—to walk across these twin natural sandstone arches.

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

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

These unique volcanic rock formations offer the perfect opportunity to camp and hike.

A beautiful red-faced slot canyon in northern New Mexico.

A unique geological area spiked with wind-carved rocks that resemble teepees.

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

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This church on a Tohono O'Odham reservation has stood since 1797.

This quiet chapel was central to a community of settlers who reclaimed an abandoned fort.

A cabinet of curious mathematical models and old calculators.

Religious statues built because of one man's bargain with God fill this peaceful sculpture garden.

Walk through the actual strap iron cells and solitary chambers of Arizona Territory’s first prison.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.