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

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

A 1940s nuclear reactor built to produce plutonium for the Manhattan Project.

Nuclear reactor created the plutonium used on Nagasaki.

This playground sculpture of an icon from the past is dedicated to the children of the future.

This inanimate goat created by the "welding nun" has been helping to clean up the city of Spokane for more than 40 years.

The decorations were inspired by an unlikely missing treasure.

Protected from the elements, these Native American rock paintings have survived approximately 250 years.

On the Oregon coast there is a natural hole that seems to be draining the sea.

This set of hot springs also comes with fantastic views.

A creek tumbles over a series of step-like rocks to create this scenic water feature.

This landmark is a central figure in the Nez Perce origin story.

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

A wild west land agreement was etched right onto this historic Idaho stone.

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

Natural rock water slides hidden in the remote forests of northern Idaho.

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

A ghost town in a remote corner of Oregon hosts a touching tribute to Sacagawea’s son.

This large maar crater in Oregon is the bigger brother to Hole in the Ground.

At the base of Steens Mountain resides an otherworldly desert.

A sprawling cave network created by a lone lava tube.

This great stone guardian of the forest is a relic from the land's volatile volcanic past.

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

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