does the Art Institute in Chicago have lockers for the public to hold bags?
The Museum portion does not have lockers but they do have a coat check, where you should be able to check your bag as well. http://www.artic.edu/aic/visitor_info/geninfo.html#map The School portion it self does indeed have lockers, but they appear to be for students, you can however claim an empty one easily by simply putting a lock on it then registering it with Student Affairs office, 36 South Wabash Ave., suite 1204. http://www.saic.edu/continuing_studies/ace/general_info/index.