We're road tripping from Houston to Chicago in July and will have five days in Chicago, which is a rather long stay for us. Are there any other cities nearby (say, within a five-hour drive) that are absolute must-visits? Anything in Wisconsin? And I generally like to have nature stops on our road trips, but I can't find much information about pretty natural areas in this part of the country for a nice hike.
Thanks for any help you can provide.