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

One man's ambition created this psychedelic log home.

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

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.

A museum dedicated to the history and exploration of both popular music and science fiction.

A wall of chewing gum moonlights as collective art.

Jail from the 19th century that was built by inmates.

The largest outdoor art gallery in the Northwest United States.

This work of art by Matthew Mazzotta resides in this park dedicated to the first black legislator in Idaho.

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

This canyon is named for a unique geologic formation where the river vanishes underground near the mouth of the canyon and reappears farther down.

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

This museum details the history of a local miracle: The return of the critically endangered black-footed ferret, which was once believed to be extinct.

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.

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

Around half a million years ago, these magnificent columnar basalt cliffs were formed from cooling lava.

No Gordon Lightfoot song, only a barebones monument to greed.

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

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

An architect's childhood fantasy treehouse made real.

Monasteries on rock pillars, once accessible only by frayed ropes.

The hallucinogenic center of the ancient world.