10. Seaview Hospital
Seaview Hospital was once the largest tuberculosis sanatorium in the country. It is 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 planned and developed between 1905 and 1938.
The NYC.gov website for the Sea View Hospital Rehabilitation Center & Home gives no indication of the surrounding abandonment, but indeed a few organizations have returned to operate from within the grounds, including a rehabilitation center, volunteer firefighting organization, and volunteer ambulance service. The photographic team of 9/11 took a visit inside the crumbling remains of the Children’s Hospital at Seaview, as well as the underground tunnels beneath the main building, and shared with us their photos.