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Take an eye-popping look at the greatest structures and machines ever created.

Megastructures
Take a look inside the most ingenious and awe-inspiring structures of all time. From architectural triumphs of ancient times to the cutting edge science and technology behind marvels being built around the world today, MEGASTRUCTURES reveals the methods used and the challenges faced at every stage of design and construction.
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Witness the Bahrain World Trade Centre. Two 50-storey glass "sails" rise over 240 metres into the sky along the shores of the Persian Gulf. This unique architec...

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