Long a hangout of A-list celebrities, the Pump Room Restaurant in Chicago is still ‘hopping’ in the 21st century. The restaurant, memorialized in Frank Sinatra’s classic “Chicago”, was one of the first high level restaurants to open in Chicago after the Prohibition era. The eatery has seen countless celebrities including Marilyn Monroe, Clark Gable, Ronald Reagan, John Barrymore and countless others. For a while, it’s luster faded somewhat as the dining scene in Chicago led by Charlie Trotter passed it by.