MegaStructures - World Trade Center Bahrain (National Geographic Documentary) 11072015

The Bahrain World Trade Center, with its two 50-storey glass 'sails' that are powered by a revolutionary new means for a building of this size ... wind! Architect Sean Kela hopes the shape and orientation of the towers will funnel the wind directly into the turbines path. The tapering shape of the towers also means they will funnel more wind to the lower turbine and less wind to the higher one making all three rotate at roughly the same speed, yielding approximately the same amount of power