Climb this 1,815-foot-tall observation tower to have the whole of Toronto at your feet and overlook up to 100 miles on a clear day. Once the tallest structure on Earth for over 30 years, the CN Tower attracts travelers to its two observation decks—one of which features a glass floor. If you’re looking for an extra thrill, try Edgewalk, where you can walk hands-free on a ledge surrounding the top floors. The tower is also home to the award-winning 360 Restaurant, which completes a rotation around the structure every 72 minutes, giving you an ever-changing view of the city while you dine. – Tripadvisor
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