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.

The only road through the heart of Glacier National Park.

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

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

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

An entire town preserved as a historic landmark.

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

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

New fungal and bacterial species call this deadly lake home.

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

The highest bridge in America was built for an almost unnervingly small amount of money.

Strange red rock formations that have been attributed to a higher power for hundreds of years.

There are eight natural springs around town, each with a slightly different taste.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

The largest source of fossilized insects anywhere.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

An impressive collection of over 50,000 minerals including moon rock from the Apollo 17 mission.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.

This hot dog-shaped diner has moved all around Colorado, but has never been to New York.

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

The ancient dwellings of the Puebloans, located in the cliffs of majestic mesas.