- "Nothing travels faster than light with the possible exception of bad news, which obeys its own special rules."
– Douglas Adams
Despite having a seemingly useful bonus, the Population gained from the CN Tower may not be able to make up for the wonder's Production cost unless the game lasts enough turns for the increased production gained from the population growth to make a difference (e.g. in a game played on Marathon speed). This can be offset by not building Broadcast Towers when planning to build this wonder. Civilizations with a large number of cities will enjoy more benefits from the wonder, as well as a greater Culture gain from the free Broadcast Towers.
Note that the Broadcast Towers will go to whichever civilization owns the CN Tower. That means that the original builder will lose the free Broadcast Towers if another player captures the city with the CN Tower (and the new owner will gain them), although the increases in Population and Happiness will only be rewarded to the builder. The additional Broadcast Towers awarded when this wonder is completed go to all cities controlled by that civilization, even if they have just been captured and are still in resistance. The free Broadcast Tower also goes to any city founded or acquired after the CN Tower has been completed, but, as when the city with the wonder switches hands, there will be no increase in population or happiness.
At one time the tallest free-standing structure in the world, the CN Tower of Toronto, Canada still remains among the tallest structures in the world today. Constructed in 1976 as a communications tower by the Canadian National Railway Company (hence the CN moniker), the tower has become a hallmark of Toronto and a major tourist attraction for the city. The tower is still primarily used for television and radio broadcasting, and is now considered one of the "Seven Wonders of the Modern World," joined by several notable constructions of the 20th century.