1976 - The CN Tower opens in Toronto.

On June 26th, 1976, the CN Tower opened in Toronto, Canada.

The tower stands at a height of 553.33 meters and was the tallest free-standing structure in the world upon its completion.

The CN Tower is an important landmark in Toronto, and is a popular tourist attraction.

The tower was designed by John Andrews, an architect from Toronto.

It took 40 months to build, and the total cost was 63 million dollars.

The tower is named after Canadian National Railway, the company that commissioned its construction.

The CN Tower is an impressive engineering feat, providing many telecommunications services to the Greater Toronto Area.

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