sealed tunnel · All Facts

sealed tunnel
Beneath the Pyramid of the Feathered Serpent at Teotihuacán, archaeologists in 2013 discovered a sealed tunnel that had been untouched for nearly <hl>1,800 years</hl>. Inside they found thousands of artifacts including pyrite mirrors, jade statues, and liquid mercury.
SrcNational Geographic

Next evidence →Pyramid of the Feathered SerpentThe Pyramid of the Feathered Serpent at Teotihuacán contained the remains of over 200 sacrificial victims, many with their hands bound, along with obsidian blades, shells, and pyrite mirrors — revealing the city's complex ritual practices.

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