View of Toronto from the CN Tower, Ontario
With 1,815 ft (553 m) Toronto's CN Tower was the highest such tower in the world until September 2007 (and still is the highest free-standing tower in America). But that is not the only thing it has to offer: Sky Pod is the second highest observation deck in the world that's open to the public, while the lower observation deck offers a revolving restaurant and a glass floor area providing a view to the ground some 1,122 ft below. Like the outside elevators, also equipped with a glass floor, this can be a challenge, especially for people afraid of heights.


