The NBC Tower is an office tower on the Near North Side of Chicago, Illinois located at 454 North Columbus Drive in downtown Chicago's Magnificent Mile area. Completed in 1989, the 37-story building reaches a height of 627 feet. NBC's Chicago offices, studios, and owned-and-operated station WMAQ-TV are based in the building. At 10 o'clock on the evening of October 1, 1989, WMAQ-TV broadcast its first newscast from the new home, with the then-weeknight news team of Ron Magers, Carol Marin, John Coleman, and Mark Giangreco. Telemundo O&O WSNS-TV has also occupied the building since its purchase by NBC in 2001, and NBC's former radio properties, WKQX, and WLUP-FM, continue to maintain studios in the tower.