Chicago the skyscraper era, which would then be followed by many other cities around the world. Today, Chicago's skyline is among the world's tallest and densest. Some of the United States' tallest towers are located in Chicago; Willis Tower (formerly Sears Tower) is the second tallest building in the Western Hemisphere after One World Trade Center, and Trump International Hotel and Tower is the third tallest in the country. The Loop's historic buildings include the Chicago Board of Trade Building, the Fine Arts Building, 35 East Wacker, and the Chicago Building, 860-880 Lake Shore Drive Apartments by Mies van der Rohe.
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