 This relief is one of the best known Aztec monuments and one of the few great Aztec monuments have been found fully "in situ".The Coyolxauhqui stone sat at the base of the stairs of the Huēyi Teōcalli, the primary temple of the Mexica in Tenochtitlan, on the side dedicated to Huitzilopochtli.The stone laid in the center of a platform that extended from the foot of the stairway.