Quote:
Originally Posted by marshall
Just wondering if someone knows what the vertical grooves are near the top of 1WTC are? They seem to be between about the 92-99 floors.. I was just wondering if they were design features, or if they simply denote the mechanical floors providing some kind of ventilation?
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Those dark bands on One World Trade Center represents mechanical floors as they are vents. Similar marks were see on the Twin Towers which were the same thing.
