Secrets of the Forbidden City
Season 44 Episode 15 | 53m 30s
How has China’s magnificent Forbidden City withstood centuries of earthquakes?
Expires: 10/17/24Video has closed captioning.
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What processes in the depths of the Earth forge beautiful and precious stones?
A team of experts rebuild an ancient battle chariot to help uncover its design secrets.
Archaeological research uncovers provocative new clues about Stonehenge.
Explore how the Song Dynasty gave rise to printing, the compass, and other innovations.