This huge, disused viaduct is now a crumbling concrete underworld of covered in years of graffiti.

When the Austin Dam failed it destroyed much of Austin...and then it failed again.

An FDR-era tuberculosis sanatorium has stood abandoned in the suburbs of the U.S. capital for over 30 years.

A once crucial portion of the Long Island railroad still lays abandoned, waiting to be turned into an urban park.

A pre-Industrial Age iron furnace and the site of a nearly-forgotten piece of Black history.

This former asylum for Black Americans is haunted by its history of violence and racism.

Beneath the mossy overgrowth covering this once-sprawling campus lies decades of history and the secrets that come with it.

A wrecked ship dating back to the American Revolution was only recently discovered off the Delaware coast.

Graffiti, cars, and religion combine to create this jungle of scrap in the Nevada desert.

Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

One of the world's largest automobile junkyards is a unique landscape of metal and moss.

The remains of the iconic train crash from the movie The Fugitive can still be found rusting along the Great Smoky Railroad.

Collection of trolley cars in the woods represent one man's attempt to preserve transportation history.

This abandoned Poconos resort is haunted by a history of kitschy romance and a violent fugitive.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

These beautiful ruins deep in the Pennsylvania woods are thought to have been a ski lodge or a speakeasy, but no one really knows.

A trash dump made beautiful by nature's power.

A toxic ghost town sitting atop a massive coal fire.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

This abandoned asylum was once a state of the art facility before devolving into one of the most deadly mental institutions in American history.

A remarkable time capsule of American manufacturing deep in Maryland coal country.

An abandoned cemetery lies in ruins as the surrounding forest swallows it whole.

A rare example of a rural school in Washington, D.C.