One man has installed bathtubs into the Utah desert floor to harness the powers of a natural hot spring.

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

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

A small flooded ghost town with a few scattered structures remaining.

Dig for your own trilobites in this goldmine of invertebrates.

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

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

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

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

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

A cave's rare beauty held a cavernous secret hidden underground.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

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

Wee (and not so wee) footprints that insects and reptiles of the Paleozoic Era left behind.

Natural sonic phenomenon comes with a grisly legend of murder and blood.

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

The outcropping is graffitied with the name of the beloved musical Muppet television series.

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

This towering volcanic plug stands out among the dramatic formations that dot this otherworldly desert valley.

This bird-shaped rock formation defies gravity, time, and classification.

The 7,000-year-old calcium carbonate formation creates a magnificent natural bridge.