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Science Channel – If We Built It Today: Season 1 (2019) Episode 6 Secrets at the Great Wall

If We Built It Today Series 1 Part 6 Secrets at the Great Wall

If We Built It Today Series 1 Part 6: Secrets at the Great Wall
The Great Wall of China is one of the world’s greatest engineering marvels, and it took dangerous, cutting-edge construction to build it. Experts use the latest tech and modern-day science to reveal if building it a second time would be just as deadly.

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