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If We Built It Today 1x6

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.

If We Built It Today: 1×6
Aug. 18, 2019

If We Built It Today season 1