willis tower in Chicago
Willis Tower, Chicago
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Willis Tower (Formerly Sears Tower) is a building found at Chicago in USA.
Willis Tower is the new name for the building formerly known as the Sears Tower.
The Willis Tower, originally known as the Sears Tower, was officially completed and opened in 1973. It was the tallest building in the world at the time and held that title until 1998. The building was renamed the Willis Tower in 2009 after the Willis Group Holdings secured naming rights.
It was the Sears Tower which is now called the Willis Tower.
As of July 2009, Willis Tower is the tallest building in the United States and the fifth-tallest freestanding structure in the world.
Wills Tower is taller
The tallest building in America is the Willis Tower, former Sears tower at 103 floors.
The Willis tower in Chicago, IL
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