Sounds like the Skyscraper Index, an interesting observation that many of the world's tallest structures were built right before the economy headed into recessi

Sounds like the Skyscraper Index, an interesting observation that many of the world's tallest structures were built right before the economy headed into recession. http://en.wikipedia.org/wiki/Skyscraper_Index http://en.wikipedia.org/wiki/Skyscraper_Index