The Chicago Park District is one of the oldest and the largest park districts in the United States. As of 2016, there are over 600 parks included in the Chicago Park District as well as 27 beaches, several boat harbors, two botanic conservatories, a zoo, and 11 museums. The Chicago Park District also has more than over 230 field houses, 78 public pools, and dozens of sports and recreational facilities, with year-round programming. The district is an independent taxing authority as defined by Illinois State Statute and is considered a separate (or "sister") agency of the City of Chicago. The district's headquarters are located in the Time-Life Building in the Streeterville neighborhood.