How many days did it take to build the empire state building?
Built during the Depression between 1930 and 1931, the Empire State Building became the world’s tallest office building — surpassing the Chrysler Building by a whopping 204 feet. The design of the building changed 16 times during planning and construction, but 3,000 workers completed the building’s construction in record time: one year and 45 days, including Sundays and holidays. The Empire State Building is composed of 60,000 tons of steel, 200,000 cubic feet of Indiana limestone and granite, 10 million bricks, and 730 tons of aluminum and stainless steel. Source from: http://www.pbs.org/…/empire_state.