Only known mainland rookery of the threatened Stellar sea lion.

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

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

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

The magic's in the hole!

Is this the most Portland place ever?

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

This gorgeous beach hides behind two headlands in Oregon's Ecola State Park.

Nuclear reactor created the plutonium used on Nagasaki.

Site of the greatest known waterfall that ever existed.

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

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

This expansive bridge in the Canadian wilderness was originally just built for friends.

A working steam clock, one of only a few in the world, located in Vancouver's Victorian Gastown.

Rustic natural hot springs in the deciduous rain forest.

The narrowest street in Canada was once a spot for dastardly doings, now a historic piece of Chinatown.

This historic Victorian hotel has a scandalous history of affairs and murder.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

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.

The site of the Wellington avalanche, one of the America's worst railroad disasters.

Sleep beneath the big screen at this old-school movie theater.

The building features one of the last remaining free-floating spiral grand staircases in the U.S.

This long, dark tunnel is open to hikers, but those without lights are known to get confused even on the straight path.