CN Tower in Toronto, Canada is a telecommunications tower height of 553.33 meters. Since its completion in 1976, was the tallest structure in the world. It is a symbol of the city and annually attracts around two million foreign tourists.
It was built between 1973-1976. Its height is equivalent to a 181-story buildings. Has a glass floor with a strength of 5 tons. The main architect John Andrews, who worked with Webb, Zerafa, Menkes, Housden and esterni Structural Division. It is considered one of the 7 Wonders of the World by the American Society of Civil Engineers.
By Maria Morari
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architectural wonders of the world