The CN Tower in Toronto, stands for communications and
observation tower.
It is the world tallest free-standing structure, it rises
1,815 feet in the sky(553 meters).
The base of the tower resembles ther letter Y.
In the tower's base there is room for two elevators and a
2,570-step staircase. In the skypod there are two obsrvation decks, a
nightclub, room for broadcasting equiptment, and the largest and
highest restaurant atop of a building.