A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

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

This giant ice cream cone is the last remaining icon of a Salt Lake City staple.

A 90-foot-tall psychedelic "tree" on the side of the highway has baffled passersby for decades.

Oddly shaped rock formation, misassociated with a nearby utopian community.

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

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

A desert settlement founded and later abandoned by Hawaiian members of the Church of Jesus Christ of Latter-day Saints in Utah's Skull Valley.

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

The remains of this early 20th century refinery loom on a mountainside like a graffiti-covered fortress.

What's a diner from the 1939 World's Fair doing in a remote Utah mountain town?

Jurassic Park—A Still Life.

Pyramid home to an obscure religious group that practices modern mummification.

A ghost town that held steady longer than most, but finally gave up the ghost.

A Mars simulation in the southern Utah desert.

Incredible sculptures inspired by obscure passages from the Bible.

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

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

The largest island on the great salt lake is home to curious creatures and strange stories.

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

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

Despite its name, this route in southern Utah offers a heavenly day trip.

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