The Templo Mayor, including the massive pyramids at the heart of the Aztec, or Mexica, capital of Tenochtitlan, is like a Russian doll, says archaeologist Leonardo López Luján of Mexico’s National Institute of Anthropology and History. “When you dig within a Mesoamerican pyramid, you find another that is older and smaller,” he says. In the ninth of 13 total layers, López Luján and his team have uncovered a small chestmade of volcanic stone that, like the Templo Mayor complex itself, contains many layers of meaning. Inside the chest, they found 15 perfectly preserved anthropomorphic figurines made of serpentine, along with Aztec symbols of water and fertility such as marine sand, a pair of rattlesnake-shaped scepters, hundreds of greenstone beads, and seashells, snails, and coral. The layer of the temple in…
