7. Seaview Hospital

Abandoned NYC-Seaview Hospital-Staten ISland-Untapped Cities-Will Ellis_Abandoned Hospitals-9Photo by Abandoned NYC

Seaview Hospital was once the largest tuberculosis sanatorium in the country, now listed on the U.S. National Register of Historic Places and is also a U.S. Historic District and New York City landmark. The historic district, which was developed next to the Staten Island Farm Colony, includes 37 buildings and today a few organizations have returned to operate from within the grounds, including a rehab center, volunteer firefighting organization and volunteer ambulance service.

Designed by Raymond F. Allmiral, the architecture and layout reflected the latest in thought about the treatment of tuberculosis, including light, cross-ventilation, access to the outdoors, and thought towards medical operational efficiency.