Tenochtitlans main temple complex, the Templo Mayor, was dismantled and the central district of the Spanish colonial city was constructed on top of it. The great temple was destroyed by the Spanish during the construction of a cathedral. The location of the Templo Mayor was rediscovered in the early 20th century, but major excavations did not take place until 1978–1982, after utility workers came across a massive stone disc depicting the nude dismembered body of the moon goddess Coyolxauhqui. This stone disc is 3.25 meters in diameter (or 10.5xa0ft).[28] These finds are held at the Templo Mayor Museum.