Doctor's Hospital, 1937.

Founded in 1929, the Doctor's Hospital was a private medical facility that was known as a "fashionable treatment center for the well-to-do." (By the first few decades of the 20th century, hospitals were where everyone visited for medical treatment, and while New York City had plenty of public hospitals, this facility filled the need for those whose who did not wish to visit public wards.)

The 14-story building opened in 1930 and had 264 private rooms, with an additional 32 hotel-like rooms for patient's families. The interiors were unsurprisingly lavish, as was the service (champagne with dinner delivered to your room on silver). And for much much of its history patients did not need to be ill to be admitted, they could simply need some time for rest. Famous folks treated here include Marilyn Monroe, Eugene O'Neil, Robert Moses (who came for "rest") and Huguette Clark. The reclusive heiress checked into Doctor's Hospital in 1991 at age 85 stayed the rest of her life (another 20 years).

By the 1970s the hospital no longer only catered to the wealthy. In 1987 Beth Israel Medical Center purchased Doctor's. It closed in 2004 and was razed in 2005 (Huguette Clark was transferred in 2004 to another Beth Israel facility where she died seven years later at 104).