A view of the building (top) where archeologists found a burial chamber at the archeological site of Atzompa, in the Mexican state of Oaxaca, is seen in this undated handout photo released by the National Institute of Anthropology and History (INAH) July 18, 2012.
A view of the building (top) where archeologists found a burial chamber at the archeological site of Atzompa, in the Mexican state of Oaxaca, is seen in this undated handout photo released by the National Institute of Anthropology and History (INAH) July 18, 2012.