Association for Public Art
Established in 1872 in Philadelphia, the Association for Public Art (aPA), formerly Fairmount Park Art Association, is the first private, nonprofit public art organization dedicated to integrating public art and urban planning in the United States. The association commissions, preserves, promotes, and interprets public art in Philadelphia, and it has contributed to Philadelphia being maintaining of the nation's largest public art collections.
Source: Wikipedia — Association for Public Art (CC BY-SA 4.0)