Under the Temple of the Feathered Serpent in Mexico lay a tunnel not seen by people in more than 1,800 years.
Damp, dark, filled with debris, and deliberately sealed by its creators, the passageway was thought to house the remains of the rulers of the ancient city of Teotihuacan. A robot that recently explored the tunnel found three secret chambers that may shed light on the millennia-old practices of the city, which the Aztecs called the place where gods are born.
Read more: The mysterious yellow orbs found at Mexico’s 2,000 year old temple | South China Morning Post.
