by CN Tower
The CN Tower one of the largest engineering works of our time and tourism centre in the world more recognizable.
At a height of 553.33m, it is an important telecommunications hub. It is almost twice as tall as the Eiffel Tower and more than three times the height of the Washington Monument.
The CN Tower consists of a main hexagonal hollow pillar of concrete containing the elevators, stairwells and power and plumbing connections. To the main pillar are attached the broadcast antenna and the two main visitors area. The main pillar has three supporting legs giving it the appearance of a camera tripod.
Some floors of the Main Level are open to the public. At 342 m is the Glass Floor and Outdoor Observation Deck. The Glass Floor consists of thermal glass units that are 64mm thick. The floor has an area of 24sq metre and can withstand a pressure of 600psi. At 346m is the Horizons Cafe and Look Out level.
There is a rotating restaurant at 351m called the 360 Restaurant. It revolves completely in 360 degrees every 72 minutes.
