CN Tower fire. Moreover, other supertall structures built between 1967 and 1976 — such as the Willis Tower (formerly the Sears Tower), the World Trade Center (until its destruction on September 11, 2001), the Fernsehturm Berlin, the Aon Center, 875 North Michigan Avenue (formerly the John Hancock Center), and First Canadian Place — also have excellent safety records, which suggests that the Ostankino Tower accident was a rare safety failure, and that the likelihood of similar events occurring at other supertall structures is extremely low. The CN Tower was originally lit at night with incandescent lights, which were removed in 1997, because
Tribune Tower Tribune Tower The Tribune Tower is a neo-Gothic skyscraper located at 435 North Michigan Avenue in Chicago, Illinois, United States. It was the home of the "Chicago Tribune", Tribune Media, and tronc, Inc., formerly known as Tribune Publishing. WGN Radio (720 kHz) originated broadcasts from the building until moving to 303 Wacker Drive in June, 2018. The last WGN Radio broadcast emanated from the Tribune Tower on June 18, 2018. The ground level houses the large restaurant Howells & Hood (named for the building's architects), whose patio overlooks nearby Pioneer Court and Michigan Avenue. CNN's Chicago bureau was also located