Inca tunnel entry in Peru. Credit ... Once they understood the potential layout of the tunnel network, the research team used geo radars to trace its path. These devices emit electromagnetic waves to ...

Following up on a tip by a 17th century Jesuit monk, researchers discover an Inca tunnel network under Cusco. (photo credit: OJUP. Via Shutterstock) Archaeologists in Peru find a hidden Inca ...

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On 10 September 2021, the episode titled The School Teacher, the series examines the tragic case of Christy Ann Mirak, a 25-year-old schoolteacher from Lancaster, Pennsylvania, who was found ...

They may have been used to measure produce being paid to the Inca state as tribute.(Courtesy Charles Stanish) A survey showed that most of the holes were about three feet across and 20 to 40 ...