One of the last socialist halls still standing in the United States.

One home in the historic strip hides secret compartments and the ghostly songs of long-gone canaries.

A sprawling museum located on the former site of the Orphan Girl Mine.

The shortest river in America flows for just 201 feet.

A smoke stack so large, the Washington Monument could fit inside!

A working ranch doubles as a sustainable hub for world-renowned classical music and large-scale sculptures.

After Havre burned down, the best place to build was under the ashes.

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

These giant metal horses graze on a hilltop near the Montana highway.

See the computer’s history revealed over the course of 20,000 years.

An entire town preserved as a historic landmark.

"Polynesia on the Plains."

The last physical evidence of the Lewis and Clark trail is one of their autographs etched into this giant rock.

The only road through the heart of Glacier National Park.

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

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

This amazingly preserved Gold Rush town is a historian's dream.

This giant tower beacon was a key navigation tool for pilots delivering mail amid the night skies.

This pop-culture shop also offers the chance to become part of their favorite tv show or movie.

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

The highest point in Washington state is a volcano covered in glaciers.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

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

An Idaho legend carved out a cave village with his own two hands.