Start at Harold Washington Library. The library has it's own station so it's easy to jump on and off the orange line even during Chicago's blustery days. Before heading inside, have your kids look for the giant owl at the State Street side of the top of the building. Once inside, head up to the 9th floor where you can read your favorite books under the glass roof. The library also offers plenty of kids programs that can be found online at chipublib.org/forkids.