Kuwait's sovereign wealth fund owns the Willis Building, a 28-floor tower in the heart of the financial district designed by ...

Occupying the 103rd floor – that's nine floors higher than 360 CHICAGO – of the 110-story Willis Tower (the third-tallest building in North America after One World Trade Center and Central ...

Landmark opened in 1973 with original tenant Sears Roebuck & Co. CHICAGO, Illinois (CNN) -- Sears Tower is history. As of Thursday, the iconic Chicago, Illinois, skyscraper is now named Willis Tower.