Interesting collection of images here, of alternate images of New York. The images show what the place could have looked like had certain events took place, either in 'real life' or in fantasy. Images are taken from films (AI, Metropolis), and architectural designs, etc.
What's most intriguing is Gaudi's hotel design, which would have stood proudly incongruous on New York's skyline, had it got the go ahead. Makes you proud to be British, now that more and more daring buildings are popping up, like Birmingham's Bull Ring and The Gherkin in London.