Gold, silver, copper, lead, and zinc were once extracted at this abandoned mine near Lookout Mountain.

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

A graveyard for early settlers, sometimes called Old Pioneer Cemetery, hidden in the woods on a hillside.

This unique library spans a mighty river.

A historic Masonic building overlooking the Puget Sound.

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

Granting the right of way to ships over surface traffic since 1917.

A 1,000 pound brass bell commemorates a time when this small maritime neighborhood was actually its own separate city.

A community gathering place that once housed half-ton tanks and the World's Fair.

This 50-ton ship on Orcas Island has never seen the ocean.

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

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

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

Nuclear reactor created the plutonium used on Nagasaki.

A frozen relic of Seattle's hydroelectric boom is now a teaching facility for future engineers.

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

Mysterious ancient petroglyphs carved on a glacial boulder at the tip of Bainbridge Island.

A magical sanctuary of mythological statuary.

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

This grove of ghostly cedars was killed in 1700 by an enormous tsunami, felt from the United States to Japan.

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

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

Allowing humans and fish alike to migrate from freshwater to saltwater and back again.

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