This gallery of prehistoric red ochre art lines the wall of a scenic segment in Utah's San Rafael Swell.

An Ancestral Puebloan ruin that appears to burst into flames in the sunlight.

This ancient cave is home to a museum, bar, and is filled with fluorescent minerals.

One of the world’s largest collections of petroglyphs records 2,000 years of human activity.

A striking, menacing sandstone peak towering above a landscape that's equal parts Mordor and the Moon.

A tunnel with windows, so you don't miss out on the impressive views.

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

Here lies Lilly E. Gray, an alleged "victim of the beast," but the reason long remained a mystery.

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

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

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.

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.

This combination shop and museum is filled with curious items and artifacts.

This oddity shop contains everything from antique tools to a human skeleton.

This landmark is a central figure in the Nez Perce origin story.

Birdhouses, peacocks, animal sculptures, and a graveyard are all found along this eclectic nature trail.

These century-old beehive-shaped kilns were built to produce charcoal for nearby mines.

Home to a timed geyser created by complete accident.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

A few dilapidated structures are all that remain of this deserted former silver mining town.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

A former gold rush boomtown has managed to stay in business for over 100 ramshackle years.