One believer transformed a local curiosity into proof of Vikings on the Great Plains.

The final resting place and once home of the Bandit Queen of the West.

Where hills of dirt conceal the burial ground of one of the most powerful ancient Native American societies.

Travel through the hidden underbelly of the city in colorful tunnels filled with art and history exhibits.

Along the historic Mother Road is an old gas station with a secret counterfeiting past.

This former mining town was named the most toxic town in America.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

Collection of skeletal systems from the "world's leading supplier of osteological specimens."

An immersive art experience built by local arts collaborative, Factory Obscura, in the building formerly known as The Womb, a psychedelic arts center founded by the frontman of the Flaming Lips.

The future of roadside attractions is this sci-fi soda mecca that is home to a 66-foot tall neon pop bottle.

An acoustic anomaly with a mysterious cause.

This shallow pit was once used to send over 20,000 buffalo plummeting to their death.

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

This Yellowstone geyser may not shoot as high as the nearby Old Faithful, but it erupts for considerably longer.

A century-old cabin off of Highway 30 touts an unusual construction material: dinosaur bones.

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

Devilish landscape, once cinema home to giant alien bugs, now derelict roadside attraction.

The remote outlaw hideout of Jesse James, Butch Cassidy, and the Sundance Kid.

Native Americans built this circle of stones, which was used to predict astronomical events.

One man's ambition created this psychedelic log home.

The largest hot spring in the United States is, as the name suggests, a stunning show of natural color.

The first declared National Monument in the United States.

The famous 102-year-old circus elephant was struck and killed by lightning.

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