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　　"Ancient Superstructures" exposes the secrets behind the most famous monuments on the planet. After the success of the first season, which revealed the secrets of Mont Saint-Michel, the Great Wall of China, Machu Picchu and Petra, the second season is once again taking on spectacular monuments: the Louvre (France), the Temple of Angkor (Cambodia) and the Basilica of Sancta Soph... (展开全部)