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

The founder of a utopian religious community based on the Golden Rule laid his son to rest on this grassy hill.

An electrifying collection of gadgets and literature from the 16th through 20th centuries.

This edible park is open to any and all foragers.

This Puget Sound military post has a long, turbulent history as a gateway to the Pacific.

This Cold War missile launch site has been abandoned for 40 years.

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

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

Quirky movable sculptures have been racing through the town since 1983.

This remarkable collection devoted to the study of fish includes 1 million preserved specimens from all around the world.

Nuclear reactor created the plutonium used on Nagasaki.

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

This Cold War siren is one off the last of its kind still standing with its immensely powerful original horn.

A commemorative mural in this tiny Ballard park honors the neighborhood's rich Scandinavian ties, particularly with Seattle's Norwegian sister city Bergen.

Walking by this fence is like strolling along a portal to various fictional worlds.

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

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

One artist's yard is full of shining, whirling kinetic sculptures that look like pure steel psychedelia.

This graveyard contains markers and monuments dedicated to some of the darkest chapters in Washington's history.

A whimsical menagerie of devils, krampuses, satyrs, and other horned creatures.

Activists are fighting to preserve these unfinished highway ramps as a tribute to the citizen revolt that halted their construction decades ago.

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

What's that on the side of that building? Va Va Voom, it's Bettie!

A young botanist's horticultural vision realized through a lifetime of planting, tending, and collecting seeds.