From practical beginnings to icon status, Toronto’s CN Tower marks 50th anniversary  CTV NewsThe CN Tower turns 50 today. Here is a look back over the decades.  CP24CN Tower anniversary about more than just a recognizable landmark  CityNews TorontoHow the CN Tower’s opening changed Toronto — 50 years ago today  TVO TodayThe CN Tower just turned 50. But how does it turn up in pop culture?  CBC