The CN Tower in Downtown Toronto, Ontario, Canada, is a communications and observation tower standing 1,815.4 ft. It surpassed the height of the Ostankino Tower while still under construction in 1975. It then was the tallest free-standing structure ‘on land’ in the world. Because the Petronius Platform oil platform in the Gulf of Mexico is taller at 2,001 ft), but most of the platform is underwater. The platform, rather than the CN Tower, carried the title of tallest free-standing structure in the world.
In September 2007, after holding the record for 31 years, the CN Tower was passed in height by the still being built Burj Dubai. (the Petronius oil platform was exceeded by the same building too) Though the CN Tower contains a restaurant, a gift shop, and multiple observation decks, it does not have floors continuously from the ground, and therefore it is not considered a ‘building’ by the Council on Tall Buildings and Urban Habitat. The tower is said to have 147 floors because the internal staircase has this many levels from the ground up to the skypod. You can ride to the top on the outside elevators in this video. (there is a commercial)
The tower stands as the second-tallest free-standing structure on land in the world, the tallest ‘completed’ structure, the tallest free-standing tower, and has the world’s hightest public observatory.
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