A glimpse into the "Logging Capital of the World" at a time when there was far more forest and far less machinery.

The longest and widest floating bridge in the world.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

A rare tour of a commercial jet assembly plant, held inside one of the largest buildings in the world.

This working class sculpture pounds his hammer all the livelong day.

This large Sitka spruce that appears to be floating in mid-air, has defied logic for years.

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

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

Cave carved out of a huge snow drift collapsed killing one and injuring five in July 2015.

From a neon Rapunzel to a bike traffic meter to a street fair color scheme, the most opened drawbridge in the US is a veritable art gallery.

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

The tech giant built three enormous glass orbs in Seattle so employees could work inside a rainforest greenhouse.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.

The first park built over a freeway is a brutalist masterwork.

This former coal gasification plant found a curious second life as a popular public park.

A wall of chewing gum moonlights as collective art.

Rustic natural hot springs in the deciduous rain forest.

A surreal landscape where fanged rocks rise from the ground and the ocean feels like a great mystery.

A museum dedicated to the history and exploration of both popular music and science fiction.

Stroll through a wonderland of stupendous moss-covered trees.

A giant Troll lurks under one of Seattle's oldest bridges.

Shoreline strewn with the remains of ghostly fallen trees.

Millions of numbers carved in glass represent the tattoos forced upon victims.

Located in Faneuil Hall, the headquarters of the Ancient and Honorable Artillery Company of Massachusetts has stood the test of time.