Chicago

So today I was looking up train tickets for Chicago. I wouldn't mind taking a day trip down when it gets nicer so we can walk the Navy Pier and down the mile of shops and stores. I have been to Chicago before but it has been a couple years and I really want to go back. Another reason I would like to re-visit is to go to the Shedd Aquarium and The Museum Of Science and Industry! I went in 7th grade but that seems like forever ago. It was also a very quick trip so there's so much left unseen. Hopefully I find a time on spring break to go!