A Look Back At Pie In The Sky Plans

"With the space age entering its crassly commercial phase and science fiction dominated by gritty dystopian visions, you could be forgiven for giving up on the future. But not everyone has. With Dubai's 800-meter-tall Burj Dubai skyscraper almost complete, starry-eyed visions of tomorrow's cities are more popular than they've been in 50 years.

Here's a collection of promised skylines we never got to see -- and a few that may yet come to be -- as seen from the imagined eyes of those who live there."