Toronto’s CN Tower, one of the tallest free-standing structures on the planet, was declared one of the modern “Seven Wonders of the World” by the American Society of Civil Engineers. Aside from its trademark feature, the now-iconic SkyPod which adorns the top, the building is characterized by the tripod supports surrounding its hexagonal center. The tower’s elevators, located on the outside of the building, whisk you to the top in under a minute. The lifts’ floors are made of glass, allowing you to experience the ground dropping from under you. And this is just the prelude to the observation deck which features unobstructed views for kilometers in all directions. It’s not for the faint of heart but the payoff is spectacular.