Home to the deepest rift anywhere on Earth.

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

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

A legal loophole makes it possible to get away with murder within this 50-square-mile section of Yellowstone.

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.

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

An entire town preserved as a historic landmark.

For thousands of years, Native American hunters drove buffalo straight off this cliff in Montana's Yellowstone Country.

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.

The rocks of a certain area of Butte, Montana give off a musical ring when hit.

New fungal and bacterial species call this deadly lake home.

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

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