What are some must-go places in Chicago for kids ages 10-15?

thats a nice hotel and you will be right inside the loop area (downtown Chicago) - walking distance is pretty much just downtown area but for s short cab ride you can go to Planetarium, Aquarium, Museums, I think Navy Pier will be a fun spot. Also we have a Lincoln Zoo thats free of charge and keep in mind the planetarium, museums, or aquarium do offer a free admission only on certains days so you must have to look it up on google. have fun in Chicago