No one knows exactly how deep the world’s deepest geothermal hot spring is.

Hidden in the Santa Ynez Mountains off Highway 154, this tiny restaurant once served as a stagecoach stop.

Jurassic Park—A Still Life.

An extraordinarily ornate museum in San Diego holds wondrous anthropological treasures.

A house carved into a rock in the 1940s.

This outsider art paradise is filled with dinosaur sculptures crafted from recycled machinery.

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

A dazzling display of red rocks weathered into spires and hoodoos.

A small oasis not far from downtown Moab.

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

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

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

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

Come for the speed, leave in love with the desert.

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

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.

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

A replica that won't float away.

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

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.

This nonsensical smiling boat shuttles passengers between two places they could've easily walked between.

A hidden subterranean installation offers a view of the sky.