Welcome to the 31st Century, New New York City

This is exactly what New York City needs. A superstructure on top of it, with different levels dedicated to everything from recreation to shopping to farm. Because we don't have enough fun, shopping, and crap down here already.

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When are we going to see these structures, which have been imagined since the 19th century? Do you think humanity really need cities with multiple floating levels? [LED via Archdaily]