The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

"...I guess that was your accomplice in the wood chipper?"

Between Missoula and Spokane, a family-owned travel center has an unusual museum in the back.

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

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

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