I'm going to be in Chicago for about 24 hours, starting on Sunday evening. I have a cousin to hang out with Sunday night, but I'm all alone on Monday while she's at work. Assuming I'm lucky enough to be able to leave my suitcase at her apartment during the day, what should I do on Monday? I was thinking maybe the art museum, but a whole day there could get a bit old. I'm sure there must be someone here who has some suggestions!