An extraordinary mixture of natural beauty and man-made phenomena.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

Oregon's unexpected high desert, displaying layers of time in a colorful show.

A short hike into the mountainside forest reveals a decaying 1890s town.

A small, fascinating fire museum hidden in plain sight in an administrative building.

A haunted hot springs hotel that went from healing retreat to asylum before it was restored.

A town's monument to a touch-football victory 50 years in the making.

Site of the greatest known waterfall that ever existed.

A cave interior in the shape of the ancient rhinoceros, created by lava cooling around its carcass.

A bust of the first president welcomes visitors to the only town in America called George, Washington.

An exercise in patience and imagination, where Mother Earth turned common stuff into precious hidden treasures.

This metallic stampede sits frozen on a Washington ridge yet the artist's vision is still incomplete.

Over 75 historically themed murals grace the walls of a small Washington city.

Perhaps the world's only gas station inspired by a political scandal.

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

In Washington's Yakima Valley lies a town "where dinosaurs roam."

The only Native American museum along the Oregon Trail, run by the peoples who have lived on the land for generations.

Remember that scene in the Matrix, when Neo is in the big white room with all the weapons flying by? Well, this is what it would look like if he had wanted trees instead of guns.

A stunning landscape of bunkers that once stored chemical weapons.

Nuclear reactor created the plutonium used on Nagasaki.