Teardown of Canada's second-tallest structure moving fast in Ontario

Ontario demolition crews are making quick work of what was, until very recently, the second-tallest structure in all of Canada. The enormous Vale (formerly Inco) Superstack towering over Sudbury, Ont., reigned as the silver medallist of Canada's tallest structures behind the CN Tower until earlier this year, when demolition began to chip away at the 381-metre-tall smokestack. The Superstack was…