North Brother Island, East River, New York City, United States

Now a bird sanctuary, the island is currently abandoned and off-limits to the public. Most of the original hospitals' buildings still stand, but are heavily deteriorated and in danger of collapse. A dense forest conceals the ruined hospital buildings, and from the 1980s through the early 2000s it supported one of the area's largest nesting colonies of Black-crowned Night Heron. However as of 2011 this species has abandoned the island for unknown reasons.
Legacy
North Brother Island was featured in episode 8 ("Armed and Defenseless") of Life After People on the History Channel. It was used as an example of what would happen to structures after 45 years without humans.