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CNA Center is a 600-foot (183 m), 44-story high-rise building located at 333 South Wabash Avenue in Chicago. CNA Center is a simple, rectangular International Style building, but it is unique in that the entire building is painted bright red, turning an otherwise ordinary-looking structure into one of the most eye-catching buildings in the city. It was designed by the firm of Graham, Anderson, Probst & White and was completed in 1972.
When opened in 1930, the Merchandise Mart or the Merch Mart, located in the Near North Side, Chicago, Illinois, was the largest building in the world with 4,000,000 square feet (372,000 m) of floor space. Previously owned by the Marshall Field family, the Mart centralized Chicago's wholesale goods business by consolidating vendors and trade under a single roof.
The Terminal Tower is a landmark skyscraper located on Public Square in downtown Cleveland, Ohio. It was built during the skyscraper boom of the 1920s and 1930s, and was the second-tallest building in the world when it was completed. The Terminal Tower stood as the tallest building in North America outside of New York City from its completion in 1930 until 1964.
The Wrigley Building (400-410 North Michigan Avenue, Near North Side, Chicago, Illinois) is a skyscraper located directly across Michigan Avenue from the Tribune Tower on the Magnificent Mile. It was built to house the corporate headquarters of the Wrigley Company. When ground was broken for the Wrigley Building in 1920, there were no major office buildings north of the Chicago River and the Michigan Avenue Bridge, which spans the river just south of the building was still under construction.