Original CN Tower engineer shares his thoughts on tower's 50th birthday (opens original article in a new tab)

The original CN Tower engineer shares his experiences and reflections on the tower's 50th anniversary, highlighting its construction challenges and historical significance.

• Original CN Tower engineer Franz Knoll reflects on the tower's 50th anniversary.
• The CN Tower was the world's tallest freestanding structure from 1976 to 2010.
• Construction faced challenges including concrete issues and required 1,537 workers over two years.