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

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."

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

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

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.

A replica that won't float away.

Giant, natural amphitheaters made of delicate geological formations called "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.

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.

Incredible sculptures inspired by obscure passages from the Bible.

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

A house carved into a rock in the 1940s.