Am spending three days with a friend in Chicago in a few weeks and looking for ideas of what to do. Will obviously be doing the obligatory shopping but apart from that we are thinking of spending the first day doing a boat tour (an architectural one of the river rather than the lake, I think)and then doing p.m. in Millennium Park and the Art Institute. All suggestions welcome! Also if anyone has restaurant recommendations that would be great. We are staying in the Palmer House Hilton in the Loop and would like both casual dining and a nicer restaurant where we could dress up a bit one night. I have had the Rough Guide in my bag for months but there are so many options, it's just overwhelming!