"Toronto’s most iconic landmark is the 1,815-foot CN Tower, the tallest freestanding structure in the world from 1976, when it was built, to 2007. While the tower does serve a purpose—its 335-foot antenna is used to broadcast television, radio, and cell signals—it’s also the most popular attraction in the city. The concrete megastructure is home to a number of observation decks, a restaurant with the highest wine cellar in the world (at 1,151 feet), and the EdgeWalk, a thrilling attraction that lets visitors walk outside the structure at 1,168 feet above street level. Tickets are required, with different packages providing different experiences." - Stefanie Waldek
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