29 Sep 1930 — Original caption: Flirting with danger is just routine work for the steel workers arranging the steel frame for the Empire State Building, which will be the world’s tallest structure when completed. Erected on the site of the old Waldorf Astoria, this building will rise 1,284 feet into the air. A zeppelin mooring mast will cap this engineering feat. — Image by © Bettmann/CORBIS