This landmark church at the Flathead Reservation mission features 58 ceiling and wall frescoes painted by the mission's cook.

A classic carnival ride that was carved to be untouchable.

"Polynesia on the Plains."

The shortest river in America flows for just 201 feet.

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

A memorial to the most decisive Native American victory of the Plains Indian War.

The West's first incursion into the Afghan world lies buried beneath a military base.

A monument to the three wars that led to German unification towers within a Berlin traffic circle.

Located in a heritage building, this Mickey D's is missing its Golden Arches.

These paved rills bring freshwater into Altstadt and could spell wedding bells for whoever stumbles into the waters.

With over 340,000 artifacts and counting, there is something for everyone, often called the "Smithsonian of the West."

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

A metal menagerie fills the yard of this museum and gallery, the work of Montana artist Bill Ohrmann.

An entire town preserved as a historic landmark.

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

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

One man's ambition created this psychedelic log home.

The only natural lake in the world that drains into both the Atlantic and Pacific Oceans.

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

An architect's childhood fantasy treehouse made real.

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

A beautiful geyser under environmental threat.

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

A 6-mile-long lake created by an apocalyptic seismic event and the deadly chain reaction that ensued.