The CN Tower is turning 50. Test your knowledge of 50 fun facts with our quiz (opens original article in a new tab)

The CN Tower is turning 50 and is celebrating with a quiz highlighting its history and unique facts, including its original purpose and records it held.

• CN Tower is celebrating its 50th anniversary with a quiz featuring 50 fun facts
• The tower was built to address interference with radio and TV signals from skyscrapers
• The CN Tower held the title of tallest free-standing structure for 31 years before being surpassed by the Burj Khalifa