What Was This Tunnel Under Teotihuacan For?

What was the mysterious tunnel beneath the Temple of the Feathered Serpent at Teotihuacan? Discovered after a sinkhole opened in 2003, the tunnel became the focus of 18 years of archaeological investigation. Researchers eventually uncovered more than 120,000 artifacts, including strange pyrite covered spheres, animal remains, shells, jewelry, ritual offerings, and something even more unexpected: liquid mercury. But these discoveries only raised more questions. Why was the tunnel built? Why was it filled with so many offerings? What do the strange objects found inside actually represent? And what can the tunnel's unusual design tell us about the people who built it? In this video, Ed Barnhart brings together the discoveries from nearly two decades of investigation and examines what this remarkable underground complex may have meant to the people of Teotihuacan. The deeper the archaeologists went, the more mysterious the tunnel became. What do you think they were trying to create beneath the temple? #Teotihuacan #Archaeology #Mesoamerica #AncientHistory #EdBarnhart