Documentary about extraordinary feats of engineering, Get an inside look at the planning and engineering behind creating some of the greatest buildings ever made.

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Extraordinary feats of engineering, continuing with the 98-storey Trump International Hotel and Tower in Chicago, which has enough reinforcement to make it tornado-proof.
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Extraordinary feats of engineering, continuing with the 98-storey Trump International Hotel and Tower in Chicago, which has enough reinforcement to make it tornado-proof.