go to wriggley stadium! the tour there is much more interesting than you would think and the surronding area (wrigglyville) is where all the cool second hand stores are (i found some great vintage stuff very cheap) and other assorted "cool" establlshments. i also recommend a quick drive through the downtown/finicial district , you are gonna see architecture like nowhere else ,they take that frank wright stuff serious down there! chicago is a great town but if you want to go to a good blues club you got hit the south side