Forty years ago, on June 26, 1976, the CN Tower in Toronto was opened to the public. For 31 years it held the title of the world's tallest free-standing structure in the Guinness Book of World Records, until September 2007 when Dubai's Burj Khalifa surpassed its height of 553.33 meters (1,815.4 feet). - Full text at: http://www.tomorrowsworld.org/magazines/2016/may-june/towering-arrogance