CN Tower, Canada's National Tower, defines the Toronto skyline and at 553.33m (1,815 ft., 5 in.) it is the Worlds Tallest Freestanding Tower, an architectural triumph and engineering Wonder of the Modern World. With breathtaking views from 3 observation levels including the Glass Floor, Look Out and SkyPod, theatre, rides, arcade, shopping and a first class award-winning dining and event centre, Torontos must see attraction celebrates 30 years in 2006!