doi:10.7916/D8N58NMMEmpire State Lights, World's Most Powerful, at Cost of $250,000 Can Be Seen 300 Miles Ships Can Be Seen 40 Miles at Sea-86th Floor Observatory-1,050 Feet 16,00 Persons Work in Building 6,500 Windows to Wash Twice a Month 3,500 Miles of Telephonepostcardsstill imageBuildingSkyscrapersMidtown Manhattan (New York, N.Y.)Empire State Building (New York, N.Y.)