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668 kilometers is about 1,000 times as tall as The CN Tower.
In other words, it's 1,207.20 times the height of The CN Tower, and the height of The CN Tower is 0.00082836 times that amount.
(a.k.a. La Tour CN, a.k.a. Canadian National Tower, a.k.a. Canada's National Tower) (Toronto, Canada) (to spire)
The CN Tower measures 0.553330 kilometers tall at its spire. Used only in emergencies and for charitable climbing events, the 2,579-step staircase to the top is the longest metal staircase in the world.
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