C.N. Tower in Toronto (Canada) - tallest freestanding building to year 2007
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Date of build
February 1973 - 1976.
C.N. Tower is the highest free standing, non-reinforced external network of external ropes with a tower. In 1976, the tower of C.N. The tower overtook the 537 meter Ostantinoko television tower in Moscow.
The night club and rotating restaurant are located at an altitude of 351 m, and the highest observation deck in the world, called the space deck, is 447 m above the surface.
Over 40,000 m were used to build the tower? concrete, about 130 km of steel cable and over 5,000 tons of reinforcing steel.
It has been calculated that the total mass of the structure exceeds 132 thousand tons, and 1537 people participated in the construction. Under the foundation, it was necessary to transfer over 63 thousand tons of earth and shale, digging to a depth of 15 m.
There are four elevators at the top of the tower at a speed of 6 m per second. Within an hour, 1,200 people can carry in one direction. Driving to the tower head takes 40 seconds and has the speed of the starting jet.
The building is visited by an average of 1.7 million people a year.
Official website: http://www.cntower.ca