CityPass is the revolutionary visitor-friendly program offering five (5) of Chicago's most popular attractions at one packaged low price. Chicago's CityPass is a ticket booklet containing an actual admission ticket to the city's top attractions, including The Field Museum, Alder Planetarium, The Hancock Observatory, Shedd Aquarium, and the Museum of Science and Industry. With CityPass your family will love the sights, and you will love the savings.