On a Sunday. Already:
[ul]
[li]Been to the top of the Sears Tower[/li][li]Did the architecture boat tour[/li][li]Lincoln Park Zoo[/li][li]Navy Pier[/li][li]the Bean[/li][/ul]
Shedd Aquarium
Museum of Science and Industry
Six Flags (I think it’s closed for the year)
[ul]
[li]Int’l Museum of Surgical Science.[/li][li]Maxwell Street Market (mostly Mexican nowadays)[/li][li]Chinatown[/li][li]Shopping: H&M, Forever21, Dick Blick Art Supplies, American Science & Surplus, Disney Store, Nike Store, Quimby’s Bookstore, Akira, various boutiques on Damen in Bucktown, depending on gender and tastes[/li][li]Chicago Architecture Foundation downtown model (228 S. Michigan) and/or Loop walking tour departing from there[/li][li]Oriental Institute[/li][li]Ride the Brown Line L at second-floor level through the North Side. Change at Belmont to the Red Line to Berwyn; transfer there to bus 146 for a ride back downtown on Lake Shore Drive.[/li][li]If by Sunday you mean 2 Nov 2014, watch the Wallenda wirewalking stunt.[/li][/ul]