This is the Flamingo sculpture; Flamingo, created by noted American artist Alexander Calder, is a 16 m tall stabile located in the Federal Plaza in front of the Kluczynski Federal Building in Chicago, Illinois, United States. Unveiled in 1974, although Calder’s signature on the sculpture indicates it was constructed in 1973. (Adapted From Wikipedia:https://en.wikipedia.org/wiki/Flamingo_(sculpture)