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

An abandoned castle owned and ignored by Masons carries a cursed history.

This dilapidated castle-like structure overlooks the Hudson River at one of its widest points and was once home to nuns.

Abandoned 19th century homes once occupied by naval officers, soon to be demolished.

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

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

The abandoned grounds and derelict greenhouses of this once-magnificent Edwardian estate are now a nature preserve open for exploration.