An enclosed rotunda at the Henry Art Gallery in which viewers can look up and see the uninterrupted sky.

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

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

A rotting tree in the middle of Seattle doubles as an elaborately-controlled art piece.

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

A historic Masonic building overlooking the Puget Sound.

This former INS center is now home to a thriving community of artists, from performers to painters to architects.

Stones speckled along Harris Avenue reveal hidden nuggets of the past.

Rustic natural hot springs in the deciduous rain forest.

A monument stands at one of the starting lines of the Trans-Canada Highway, formerly the longest uninterrupted highway in the world.

The remains of Canada's earliest Chinese pioneers are interred along this picturesque point.

Tour the original street level of Port Angeles, buried underground in 1914.

This dilapidated ship carcass covered in trees is a striking sight.

Train debris from the deadliest avalanche in United States history can still be found in the ravine where so many perished.

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

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

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

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

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

Four abandoned towers hidden above the Douglas fir forest in Washington.

This parking garage has given itself over to graffiti artists and the neighborhood can't thank them enough.

This medieval village/restaurant perpetually celebrates the year 1376.

Continuing a tradition of movie magic on the site of America’s oldest continually operating movie theatre.

A vinyl-lover's Shangri-La.