 The pyramid is located on the east side of the avenue of the dead which runs almost directly down the center of the city of Teotihuacan.After archaeologists discovered animal remains, masks, figurines, specifically one of the Aztec god Huehueteotl, and shards of clay pots in the pyramid, it was agreed upon that the pyramid was likely a ritual temple at one point.The Temple of the Feathered Serpent was constructed after the Pyramid of the Sun and the Pyramid of the Moon had been completed.