At the former site of the Middletown State Homeopathic Hospital in Middletown, New York, there are signs of both decay
Medfield State Hospital, near Boston, is an abandoned mental institution seen in "Shutter Island." You can legally walk its grounds.
We visited the sites of NYC's most infamous former insane asylums. We also rounded up some lesser known facilities, including an orphanage and smallpox hospital.