This ghost town was once a cult-like religious utopian settlement.

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

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

The fifth-longest natural arch in the world, and the longest outside China.

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

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

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

A replica that won't float away.

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

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."

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

Dig for your own trilobites in this goldmine of invertebrates.

A well-preserved Ancestral Puebloan ruin tucked beneath a desert cliff.

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

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

A house carved into a rock in the 1940s.

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

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.

An empty mine that some believe will suddenly be filled with fortune and treasures at the end of the world.