Come see the stars with this passes to The Adler Planetarium!  Passes are good for general admission and one sky show. 

The Adler Planetarium — America's First Planetarium — was founded in 1930 by Chicago business leader Max Adler. The museum is home to three full-size theaters, extensive space science exhibitions, and one of the world's most important antique astronomical instrument collections on display. The Adler is a recognized leader in science education, with a focus on inspiring young people, particularly women and minorities, to pursue careers in science.

In March of 2010, the Adler opened Planet Explorers, a new exhibition for children ages 3-8 and their caregivers. 

http://www.adlerplanetarium.org/