7. 455 Central Park West, Former New York Cancer Hospital
The former New York Cancer Hospital, the first institution in the United States dedicated to the disease, is located on 106th Street and Central Park West. The multi-turreted architecture, more reminiscent of a French chateau departs from the more popular Gothic castle style. The hospital was converted into a luxury condo in 2005, with amenities fit for New York City’s royalty.