The open granite-paved plaza used for gatherings, protests, and events is also the site of the Chicago Picasso, a gift to the city from the artist.

Originally known as the Chicago Civic Center, the building was renamed for Mayor Daley on December 27, 1976, seven days after his death in office.

The plaza serves as a location for many civic functions including weekly farmers' markets in the summer, regular ethnic festivals, and the meeting place for Chicago's Critical Mass ride.

The interior of the building, as well as the plaza, the Picasso, and the neighboring James R. Thompson Center are also featured in the 1993 film The Fugitive and in 2006's The Lake House.

Khoiee-Abbasi has been photographed here many times, with his well-dressed appearance, his odd signs, and his general refusal to speak or acknowledge those around him making him a minor celebrity.