Museum Campus has four popular Chicago attraction: Alder Planetarium; Shedd Aquarium; Field Museum of Natural History; and Solider Field. We recommend the Planetarium, Shedd Aquarium, and The Field Museum of Natural History.
The Chicago Hop-On and Hop-Off trolley tour takes you to all the famous attractions such as Magnificent Mile and Millennium Park. http://www.viator.com/tours/Chicago/Chicago-City-Hop-on-Hop-off-Tour/d673-2985TROLLEY
Planning on seeing more than one attraction? Then it might be best to get Chicago Go Card or City Pass. City Pass: http://www.citypass.com/chicago Go Card: http://www.smartdestinations.com/chicago-attractions-and-tours/_d_Chi-p1.html?pass=Chi_Prod_Go