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There is no Next Episode of Unearthed planned.
The Great Wall of China is examined.
The Great Wall of China is the biggest man-made structure on Earth; the scientific mission to reveal the ancient secrets about the fortified wall.
The Acropolis above Athens has stood for thousands of years; scientists are working to solve its mysteries: how it was built, what it looked like, and how it has endured the test of time.
Examining Cologne Cathedral, a medieval structure that may hold the remains of the Bible's Three Magi in the Shrine of the Three Kings. Also, Amiens Cathedral is used for some comparisons.
We reveal the centuries-old secrets and mysteries of one of the most remarkable examples of Victorian engineering. Follow the cutting-edge technology that built the Palace of Westminster, including Big Ben, and find how it paved the way for the today's skyscrapers.