Left photo: Sears Tower became the tallest building in Chicago, surpassing the John Hancock Center, seen in the background, when construction continued in November 1972. (Charles Osgood/Chicago ...

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 (CBS) -- "Think about it. There must be higher love. Up in the tower formerly known as Sears above." With apologies to Steve Winwood, Kygo, and Whitney Houston, that paraphrased lyric ...