In March 2009 it was officially announced that the Sears Tower would be renamed to Willis Tower. The new name becomes effective some time this summer.
Sears, at the time of building the skyscraper in 1973 the largest retailer in the world, was the eponym of the building. In 2009 the London-based Willis Group Holdings became main tenant and got the right to rename the building to Willis Tower (announced March 12, 2009).
More about the Willis Tower …
Tags: Chicago, Sears Tower, Willis Tower