Window washing boom at The Legacy at Millennium Park
21-39 S Wabash.
The Legacy at Millennium Park is a thin, sleek residential tower on Wabash, and provides a lot of unobstructed views of Lake Michigan and lakefront parks.
The website indicates 90% of the units have been sold, and I'm not sure if the building has opened for occupancy.
Taken from Daley Bicentennial Plaza, just in front of the fieldhouse.
I think this looks like a Playstation 2 video game console.