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

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

An entire town preserved as a historic landmark.

A sprawling museum located on the former site of the Orphan Girl Mine.

New fungal and bacterial species call this deadly lake home.

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

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

It was once used as a classroom to teach mining skills to local high school students.

This oddity shop contains everything from antique tools to a human skeleton.

The mayor made the declaration in 2004.

This trail leads to a mine that was used as a sanctuary during the Great Fire of 1910.

A mining town, now abandoned, was built in a canyon so narrow that the railroad ran right through the hotel lobby.

New Plymouth, Idaho is the only U-shaped town in the United States.

With a crest near 10,000 feet, this treeless fault-block mountain in eastern Oregon provides stunning views and spectacular glacial landforms.

The unique circular corral belonging to the “Cattle King” of Oregon.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.

A vertically floating hemlock controls the waves and weather at Crater Lake.

This natural marble cave is one of only five national monuments in Oregon.

A rugged lava field dotted with molds of the ancient pines that were growing when the volcano erupted.

The longest continuous lava tube in Oregon.

The steepest tramway in North America provides stunning views of the out-of-the-way Wallowa Mountains in northeastern Oregon.

A roaring, awe-inspiring double cascade of icy water flows through woodland Oregon like something out of a Tolkien novel.

A French chateau, failed utopian community, odd museum, and Stonehenge replica in rural Washington State.

A stunning landscape of bunkers that once stored chemical weapons.