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

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

Despite sitting firmly in the global cradle of the Church of Jesus Christ of Latter-day Saints, this Hare Krishna temple is host to one of the largest color festivals outside India.

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

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

A house carved into a rock in the 1940s.

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 geothermal hot spring hides beneath a slowly growing mineral dome.

Dig for your own trilobites in this goldmine of invertebrates.

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

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

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

This historic Idaho island is home to a strange timeshare museum, a homemade mini-golf course, and an outhouse named Aunt Fanny.

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

A museum dedicated to the history and art of staying clean.

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

A wild west land agreement was etched right onto this historic Idaho stone.

See just what life was like in a 19th-century prospecting town.

Jail from the 19th century that was built by inmates.

Sweet Willy, at 30 feet tall, is the world's biggest beagle.

This museum glorifies the humble potato.

Despite his legacy of work in Spain, Cuba, and Florida, the larger-than-life writer's grave is a simple affair tucked in an Idaho cemetery.

Modeled after a famous church in Vienna, Austria—but in Helena, Montana.

A small Montana town commemorates the dog who waited at the train station every day for his owner to return.