Case file · Sacred site
Liquid mercury beneath Teotihuacan's Feathered Serpent
In 2015 archaeologist Sergio Gómez announced liquid mercury at the end of a tunnel sealed for about 1,800 years beneath Teotihuacan's Temple of the Feathered Serpent.
2015 CE · 19.68, -98.85 · status: official
The account
The tunnel, found in 2003, held tens of thousands of offerings, including pyrite-covered spheres and a ceiling sparkling with minerals. Gómez suggested the mercury pool represented an underworld river or lake.