Culture Buzz Once the United States dominated this list, but these days, you would have to travel halfway across the world to visit all the tallest buildings in it. However, in less than a decade, the tallest building on this list is going to be much, much larger.
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Chicago's Sears Tower is being renamed Willis Tower for a London insurance Group, Willlis Holdings, that leased 150,000 square feet of office space. Built in 1973, the 110-story building housed the Sears Corporation until they moved to Hoffman Estates, IL. Sears naming rights expired a few years ago. Think of all the postcards and souvenirs that will wind up in the Dollar Stores because of this change.