Ruins of the elaborate house where the enigmatic costume designer threw glamorous parties for New York's theatrical elite.

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

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

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

This Queens hospital has stood abandoned for almost 20 years after its patients were secretly relocated in the dead of night.

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

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

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

This abandoned factory on the Hudson River once churned out a million bricks a week.

A forsaken wonder in the middle of the East Side neighborhood.

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

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

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

This railroad tunnel was once the longest in Massachusetts.

This factory made "health corsets" that were a step towards liberating women's bodies.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

This decrepit abandoned building is made all the more eerie by its dark history.

This lurid German fountain plots the sad course of marriage from dating to death.

The risqué mixed-media sculptures are supposedly a metaphor for Czech politics.

This tipsy office building in downtown Prague was originally called “Fred and Ginger.”

The palace window through which Protestant nobles flung two Catholic regents, thus sparking the Thirty Years' War.