As the tallest free-standing structure in the Western Hemisphere, the CN Tower has provided fantastic views of Toronto, Lake Ontario, and beyond since its opening. But never like this. The CN Tower EdgeWalk lets those brave/crazy enough to try it walk around outside on the roof of the tower's restaurant — over 1,150 feet in the air. The entire experience lasts around an hour and a half with 20-30 minutes devoted to the walk itself, and months afterwards devoted to bragging about your accomplishment.