The CN Tower is a 553.3-metre communications and observation tower in downtown Toronto, Ontario, Canada, built on the former Railway Lands and completed in 1976; its name refers to Canadian National, the railway company that built it. It held the record for the world's tallest free-standing structure for 32 years until 2007, was declared one of the modern Seven Wonders of the World by the American Society of Civil Engineers in 1995, and today serves as an observation, telecommunications and entertainment complex with multiple observation decks and a revolving restaurant, drawing more than two million visitors a year.
Facts
Year Created LocationToronto, Ontario, Canada 1 Structural SystemHollow concrete hexagonal core built by slipform construction, topped by a steel broadcast antenna mast 1 Primary Material Building TypeCommunications and observation tower 1 Commissioned ByCanadian National Railway 1 Construction Height (metres) Current UseCommunications tower, tourist observation decks, and revolving restaurant 1 Visitor AccessOpen to the public; observation decks and the EdgeWalk attraction draw more than two million visitors annually 1 Connections
In Form
Concrete communications and observation tower.
In the Other Atlases
- Also in Geography Atlas: Canada, located there.
Sources
1. CN Tower (Wikipedia)
WikipediaHistory section, Construction subsection, first sentence
Construction began on February 6, 1973, with massive excavations at the tower base for the foundation.
Genre reference
The CN Tower is a 553.
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