In Manhattan, architects and engineers are redefining just how much land it takes to support a skyscraper. In a city where the only direction to build is up, they've designed a needle-thin tower 82 stories high, built on the construction equivalent of a postage stamp.
Episode Duration: 56 minutes and 46 seconds
Episode Number: 105
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Learn about the creation of some of the world's most ambitious and technologically advanced buildings.
From subaquatic homes to futuristic towers and pencil thin skyscrapers, see how these previously impossible structures are taking shape.