I will be coming to Chicago on a spur of the moment trip this week with my sister and my two nieces (4 and 6). I am seeking a little Chowhound advice on places that the kids will enjoy, but that won't leave me wishing I had stayed home and had a sandwich. I know we'll be at the Lincoln Park Zoo, the Aquarium, the Art Institute, and American Girl over the three days and we're staying at the Embassy Suites on N. State St, so recs in any of those neighborhoods would be great. I have a few places on my list, such as Portillo's, Xoco, Lou Malnati's, Grand Lux, Heaven on Seven, but if anyone has more suggestions, I would really appreciate them! Thanks!