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

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

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

Five varieties of trees with custom-designed grates around the trunk are planted along the route of the Seattle Transit Tunnel.

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

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

This small town bank is very aware of its name thank you very much.

This mausoleum is the final resting place of one of St. Louis's richest and most tragic families.

Undone by Prohibition, this abandoned brewery-turned-flour mill is now ready for its third act.

This former small town was destroyed not by the motor oil it sprayed the ground with but by the toxic waste that was added.

Where the author wrote her beloved "Little House" books.

This historic motel standing at the "crossroads of America" offers a radio in every room and was saved by local protesters.

An urban forest overtakes what was the greatest failure of utopic urban housing.

The oldest bar in Missouri is hidden within a limestone brewery cellar more than 50 feet underground.

The ruins of a 19th century shelter run by the Independent Order of Odd Fellows.

The maximum security facility was once thought to have "the bloodiest 47 acres in America."

This prison-turned-museum is a remnant of the Old West's grizzly, violent past.

A popular rock that acted as a waymarker for American pioneers.

This once rural mansion now sits in the heart of the city.

Storage units with a wartime past.

These experimental weapons brought World War II to Nebraska as well as 26 other U.S. states.

A once celebrated industrial wonder now lurks in a quiet corner of Flathead Lake.

This off-the-beaten-path abandoned town is a relic of Montana's silver mining boom.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.