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 ...

Chicago is famous for its impressive skyline and architectural innovation. Iconic buildings like the Willis Tower (formerly ...

formerly known as Sears Tower, which is one of the largest skyscrapers in the world. The 110-story building became part of the iconic Chicago skyline in 1973. The broadcast antennas were added in ...