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

This bridge provides safe passage for squirrels.

This famous bridge twisted itself into oblivion, but not for the reason you might think.

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

An abandoned network of military bunkers and tunnels open for anyone willing to descend into the darkness.

Legend says that these tall basalt pillars are the petrified wives of a trickster god.

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

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

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

Members of the Confederated Tribes of Warm Springs still net migrating salmon in the traditional way at this cataract on the Deschutes River.

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

A plaque commemorates the spot in the Oregon woods where the first-ever Geocache was hidden.

A logging-themed roadside restaurant surrounded by museum-quality machinery and artifacts from the industry's heyday.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

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.

This little slice of the Netherlands in the Pacific Northwest blooms in a rainbow of color each spring.

A volcanic landmark located on an Ice age lake bed.

This unassuming cheese empire in rural Oregon churns out more than 150,000 pounds of cheese each day.

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

This stoic, if derpy, giant stands as a monument to Oregon's statehood and the novelty culture of yesteryear.

Nestled between a college and a golf course, the garden is home to more than 2,500 rhododendrons.

A massive sea stack famous for its appearance in The Goonies.