The Renwick Smallpox Hospital on Roosevelt Island was built in 1856 from designs by James Renwick, Jr. It is the only landmarked ruin in New York City. Being a ruin is what gives it an air of mystery and charm.
Sources:
- Renwick Smallpox Hospital: An Abandoned Sanatorium in Manhattan, NY (opacity.us)
- Roosevelt Island Historical Society (rihs.us)
- wikipedia.org/Smallpox_Hospital























