The Denny Substation has been called "the coolest substation in the world" and sits in a densely populated Seattle neighborhood.

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

City Council meetings still happen in this historic building, impeccably preserved on the inside.

People come from across the globe to swim in this lake believed to have healing properties.

Remnants of a forgotten 1920s speakeasy and Prohibition-era murals were discovered in its basement.

A giant milk bottle from the 1930s beckons drivers to this diner.

The gravestones in this lost burial ground were bulldozed and replaced with houses and a dog park.

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

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

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

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

Nuclear reactor created the plutonium used on Nagasaki.

Leave a button on the jacket of this iconic Seattle clown.

This unique Seattle structure was designed to be the greenest commercial building on the planet.

This 22-acre botanical garden is home to the largest collection of rhododendrons in the world.

A library of only unpublished manuscripts.

An annual celebration of the infamous, unsolved skyjacking.

An eclectic restaurant serving from and to the nearby Chittenden Locks.

An abandoned 19th-century hospital now swirling in ghost stories.

Artistic Oasis in Industrial Ballard.

A piece of Seattle’s historic Chinatown preserved inside a modern museum.

In this subterranean brick arcade, a small shop continues the ancient practice of bookbinding.

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

The century-old remains of an abandoned farm town in eastern Washington.