The hidden chambers could contain the corpses of the ancient civilization’s rulers, about whom very little is known. Via the Daily Mail:
A tiny robot has made a momentous archaeological discovery deep under the famous Temple of Quetzalcoatl, it was announced on Monday. The robot has spent months exploring the tunnels under the celebrated temple, which lies about 37 miles north of Mexico City. The temple is best known for the towering Pyramids of the Moon and the Sun.
Experts expected to find just one ancient chamber at the end of a stretch of 2,000-year-old unexplored tunnel at the Teotihuacan site. Instead, the remote-controlled vehicle has beamed back images of three mysterious caverns.
The complex of pyramids, plazas, temples and avenues was once the center of a city of more than 100,000 inhabitants and may have been the largest and most influential city in pre-Hispanic North America at the time. But nearly 2,500 years after the city was founded, very little is known about the identity of its rulers.