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At an ancient city lost in the Peruvian desert for 5,000 years, experts find signs of strange rituals. Was it the first civilization of the Americas?
When a Viking fortress lost underground for over 1,000 years is discovered, experts investigate its buried treasures. What caused this civilization's demise?
The Statue of Liberty is the home to dark American mysteries. Now, experts are using the latest science and technology to reveal her secrets.