Aerial view looking down an elevator shaft, about 215 feet deep, with workers at the Merchandise Mart in Chicago, Illinois, USA, circa 1930. When opened in 1930, the building, located in the Near North Side, Chicago, was the largest building in the world with 4,000,000 square feet of floor space. (Photo by Archive Photos/Getty Images)
Image provided by Getty Images.
January 21st, 2019
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