Gift of the Wind

Gift of the Wind is a large-scale public kinetic sculpture, by Susumu Shingu, located in Porter Square, Cambridge, Massachusetts, at the Porter subway and commuter rail station. The artwork consists of a tall white pole with three red "wings" attached to the top that are "designed to shift in response to the movement of the wind, not only turning clockwise and counterclockwise, but tumbling over and over in various sequences". It is considered by some to be "Cambridge's most visible landmark".

From Wikipedia, CC BY-SA 4.0.