For a birds-eye view of Chicago, you can't miss a visit to Skydeck, an observatory that soars 1,353 feet above Chicago from the iconic Willis Tower. This unique viewing deck showcases panoramic views of the city and Lake Michigan, and features the Ledge - a glass box that extends out of the Tower for incredible uninterrupted views. Thrill seekers will get a kick out of expanding their boundaries by stepping out over thin air, and all visitors will enjoy the chance to see for miles. Admission also includes the opportunity to learn more about Willis Tower via interactive displays and infographics.