More than 1.7 million people make their way to Willis Tower's Skydeck Chicago each year, and it's easy to see why. Occupying the 103rd floor – that's nine floors higher than 360 CHICAGO – of ...

is offering free admission to Chicago residents all week long. On Tuesday, the 94th floor Skydeck Chicago at 875 North Michigan is also throwing a birthday bash. Attendees can get Chicago-themed ...