Boise State's stadium was the first non-green football field in the world.

A classic carnival ride that was carved to be untouchable.

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

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

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

An entire town preserved as a historic landmark.

An apocalyptic seismic event creates a deadly chain reaction that ends with a 6-mile long lake developing within weeks.

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

An architect's childhood fantasy treehouse made real.

A beautiful geyser under environmental threat.

One of nature's most well-scheduled phenomenons resides in Wyoming's Yellowstone National Park.

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

One man's ambition created this psychedelic log home.

At the time of its completion, it was the tallest dam in the world.

An unusual geological feature towers over the remains of a dark episode in United States history.

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

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

Derelict buildings are all that remain of a complex at the site of one of the worst mining disasters in Montana history.

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

The museum isn't crazy, it's a museum of Sweet Grass County history complete with a replica Norwegian stabbur.

"Polynesia on the Plains."

One of the largest collections of wildlife art in the United States, built into the side of a cliff in rural Wyoming.

A cemetery housing wild west legends in South Dakota.

A large camera obscura, constructed entirely from digitally fabricated components.