Old Cook County Hospital

Old Cook County Hospital is located at 1801 West Harrison Street. It was the old facility used for the famous TV show ER.  ER was a medical drama television series that aired on NBC from September 19, 1994 to April 2, 2009. ER follows the inner life of the emergency room of fictional County General Hospital and various critical issues faced by the room's physicians and staff. The show ran for 15 seasons with a total of 331 episodes, becoming the longest-running prime time medical drama in American Television History.