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.
Thursday 24 July 2014 at 23:00 - National Geographic Abu Dhabi
Friday 25 July 2014 at 03:00 - National Geographic Abu Dhabi
Friday 25 July 2014 at 07:00 - National Geographic Abu Dhabi