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The project's architects were John Andrews, Roger Du Toit, and the Webb Zerafa Menkès Housden Partnership. The structural engineer was R.R. Nicolet.

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On February 6, 1973, the  Canadian National Railways begins construction on the tower. It lasted about 40 months and cost around $63 million (CAD).

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Tower construction crews moved in on February 6, 1973, and started to remove over 56 metric tonnes of earth and shale for the foundation. Once the foundation was ready, work began on the CN Tower’s 335 m concrete shaft, a hexagonal core with three curved support arms

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In August 1974, work began on the main pod where it would eventually house the observation decks and revolving restaurant.

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The CN Tower approached completion in March 1975, when a giant Sikorsky helicopter flew into the city to lift the 44 pieces of the antenna into place

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June 26, 1976 - The tower opens to the public. A few months later the tower's official grand opening ceremony took place.

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The CN Tower was built to improve the radio and TV signals in the area. It attracts more than 1.5 million visitors each year. It also showed the strength of Canadian industry by building a tower taller than any other in the world until 2007, when the Burj Khalifa in Dubai, United Arab Emirates, surpassed it.

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Tickets very from $39 to $54 to $125 for adults (13+) depending on what you want to do.

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In 2015, two French BASE jumpers Fred Fugen and Vince Reffet surprised crowds by jumping of the top of the CN Tower (yes they had parachutes). Click the pic for a video of it.

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PanAm Games CN Tower Base Jump Toronto 2015

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Are you a selfie person? If so then the CN Tower's observation floor is for you. It is made of up of a very strong glass that can withstand the weight of 35 moose.