Pieces of iron pyrite, including once-glittering beads as well as the bottom of a small cup are stored, which were found inside a 2,000-year-old tunnel built under the ornate Feathered Serpent Pyramid, which archaeologist Sergio Gomez believes recreated the underworld and was used to initiate new rulers among other religious rituals, in the ruins of Teotihuacan, in San Juan Teotihuacan, Mexico August 12, 2021. Picture taken August 12, 2021. REUTERS/Toya Sarno Jordan