By analyzing the hair of a mummy and excavating an ancient tomb, researchers find clues about the Nazca's class system.
An ancient Peruvian civilization is gone, but they certainly left their mark. In fact, they left thousands of marks. Massive mythical creatures and geometric lines etched more than 1,000 years ago are preserved on the parched surface of the Nazca Desert. They are messages left behind, but what are they trying to say? Follow a team of scientists, using the latest forensic research technology, to determine who the people of Nazca were, where they came from, and why their advanced civilization came to a sudden and dramatic end.
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