A self-built castle made by a mysterious man.

Open since 1938, this diner has kept its fountain, malt machine, and all the gum that greasers left beneath its counter.

The installation’s official name, “You Who Are Getting Obliterated in the Dancing Swarm of Fireflies,” says it all.

High in the Rockies the third largest statue in the U.S. opens her welcoming arms, and lights up the night sky.

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

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

A collection of over 15,000 zines works to preserve DIY publishing culture.

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

This "zoo" is a cross between a junkyard and a sculpture garden, featuring animals you won't see anywhere else.

"I did this all while you were watching TV."

The remains of a historic ranch house that witnessed the Civil War battle dubbed the “Gettysburg of the West.”

This rustic old building is said to be the most photographed barn in America.

A miraculous natural phenomenon known as "the spring that breathes."

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

A replica that won't float away.

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

A collection of huge, site-specific sculptures sitting in the Montana woods.

The residents at this Yellowstone wildlife park will certify your cooler as "bear-proof."

A little-visited ghost town state park offers a glimpse into Montana’s "Silver Queen."

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

This giant meditative chakra sits peacefully in the Flathead Valley of western Montana.

Mining town from the late 1890s, once home to Calamity Jane.

New fungal and bacterial species call this deadly lake home.

Taos Pueblo recipes, foraged ingredients, and outdoor ovens define the menu at this eatery.