Willis Tower
The naming rights are legally kept for 15 years, making it is possible that the building's name change again soon. Many Chicagoans still call the tower by its old name. A July 2009 CNN article showed some Chicagoans did not want to call the tower by its new name. An October 2010 article from Chicago magazine called the building one of Chicago's 40 most important things. The author of the article did not want call it the "Willis Tower". Time magazine called the name change one of the top 10 worst corporate name changes.