The ruined remains of a coal mining ghost town are hidden within the woods.

This public space is speckled with the eerie remnants of a defunct amusement park.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

World's first "penitentiary," meant to be humane, drove men insane.

A train station that was abandoned by the coal industry and was later converted into a cocktail bar.

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

A once grand hotel is being retaken by the wilderness it once capitalized on.

The saddest little diner in New York.

A crumbling hospital from the 1850s on Roosevelt Island.

A beautiful and abandoned New York subway station from 1904, complete with chandelier.

A tunnel once abandoned now thrives with graffiti art as an off-limits makeshift gallery.

A ruined mansion hidden in the woods of the Hudson Valley, home of a tragically doomed romance.

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

A millionaire's abandoned swimming pool from the gilded age of one of America's most distinguished families.

A long abandoned hospital building on the outskirts of NYC.

Decades after testing the polio vaccine on unwitting patients, this historic mental hospital sits in ruin.

An abandoned subway tunnel that could have reinvigorated Staten Island still lies somewhere beneath this Brooklyn park.

The abandoned husk of a mental institution that failed to save a Jazz Age icon still sits nearly unchanged.

The remains of a failed subway in upstate New York is now an underground graffiti bunker.

This mouldering abandoned mental hospital was once a center for progressive healing.

These World War I shooting range tunnels are now haunted halls of underground graffiti accessed through the roots of a tree.