The Museum of Science and Industry is the largest science museum in the Western Hemisphere! Housed in the only remaining building from the 1893 World’s Fair, MSI is a Chicago must-see! You’ll experience 14 acres of mind blowing, hands-on exhibits and have the chance to navigate through a mirror maze; manipulate a 40-foot tornado; climb aboard a World War II German submarine; take a run in a human-sized hamster wheel; descend into an Illinois coal mine; board a 727 hanging from the ceiling; transmit your pulse to a 13-foot, 3-D, beating heart; and much more! It’s fun and interactive!