Belgian Architect Vincent Callebaut dreamed up a combination of skyscraper and airship, where the skyscraper itself floats in the air, feeding on a green "algae" energy: the "Hydrogenase" project is as eco-sustainable, as it is beautiful - more info:I don't think those would work very well in the wind.
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posted by The Whelk at 9:36 PM on October 14, 2011 [6 favorites]