The Great Wall of China is the biggest man-made structure on the planet — and one of its biggest mysteries. Follow the scientific mission to reveal the ancient secrets of one of history’s greatest empires.
Views: 78
Serie: Unearthed
Episode Title: Ghosts of the Great Wall
Duration: 00:43 43min
Air Date: 2016-07-19
Year: 2016
IMDb: 7.8
Please help us to describe the issue so we can fix it asap.