Well, beast, I would obviously argue that the structure that we generally tend to call "Twin Towers" would have never been built had the world never been influenced by religion. Not only that, but the entire structure of the world would be entirely different (i.e. no U.S., Russia, China, etc.--you get the point). I tend to believe in the butterfly effect to a somewhat extreme degree, yet I feel I can justify that belief if the situation arises. Consider this: I claim that, had President Lincoln been shot as he entered Ford's Theatre, not a single person alive today would have ever been born. Thus, not a single building constructed within the last 100 years would be here.