[Sigaven]

Originally Posted by KevinFromTexas

Yeah, if you look at the original renderings they showed the spire looking sort of a rolled joint. lol

http://forum.skyscraperpage.com/showthread.php?t=123628

Instead of that this is what it looks like:

http://forum.skyscraperpage.com/show...on#post6425736

IIRC the spire that we see now in the WTC is really just the inner structure of what would have been the final design, but the fiberglass cladding for the spire would have been too expensive so they just didn't put it on.