Mexico archaeologists explore Teotihuacan tunnel!

Seriously exciting news, the end of the tunnel has uncovered 4 additional chambers and thousands of artifacts!

A yearslong exploration of a tunnel sealed almost 2,000 years ago at the ancient city of Teotihuacan yielded thousands of relics and the discovery of three chambers that could hold more important finds, Mexican archaeologists said Wednesday.
Project leader Sergio Gomez said researchers recently reached the end of the 340-foot (103-meter) tunnel after meticulously working their way down its length, collecting relics from seeds to pottery to animal bones.
A large offering found near the entrance to the chambers, some 59 feet (18 meters) below the Temple of the Plumed Serpent, suggests they could be the tombs of the city's elite.
"Because this is one of the most sacred places in all Teotihuacan, we believe that it could have been used for the rulers to ... acquire divine endowment allowing them to rule on the surface," Gomez said.
Unlike at other pre-Columbian ruins in Mexico, archaeologists have never found any remains believed to belong to Teotihuacan's rulers. Such a discovery could help shine light on the leadership structure of the city, including whether rule was hereditary.

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This news is over a year old now. Still amazing, but thoroughly covered.

I'm going there next month, can't wait!

Very interesting, I may have to visit sometime.