The highest point in Washington state is a volcano covered in glaciers.

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

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

The strange phenomenon causing gravity to "work backwards" on this hill has been blamed on the paranormal.

Home to the deepest rift anywhere on Earth.

A small section of Boise, Idaho maintains the unique culture and traditions of the Basque people.

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

An obscure waterfall that looks like something out of a fantasy novel.

The only road through the heart of Glacier National Park.

Mining town from the late 1890s, once home to Calamity Jane.

This highest peak in Idaho can only be reached by traversing a formation known as "Chicken-Out Ridge."

See just what life was like in a 19th-century prospecting town.

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

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