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
Sears, Roebuck & Company Mail Order Building (Los Angeles, California) Deco tower and "Sears" sign became a "beacon for Eastsiders returning home on area freeways," and has been described by the Los Angeles Conservancy as "one of the dominant visual icons of the Eastside" of Los Angeles. The distribution center was closed in January 1992, eliminating jobs for 585 full-time workers and 775 part-timers. The facility's general manager said at the time that the Boyle Heights center was the most expensive that Sears operated, partly because the facilities were "outdated." In 2004, developer MJW Investments announced it had acquired the building and would make it the centerpiece of a proposed