MEXICO CITY.- Rests of a circular-based temple that according to the reconstructive map of Mexica ceremonial center in Tenochtitlan, could be the most important dedicated to Ehecatl-Quetzalcoatl, were discovered by National Institute of Anthropology and History (INAH) specialists in a plot located at the back of Metropolitan Cathedral. “Due to its location and nearness to Templo Mayor, it coincides with the representation made by archaeologist and architect Ignacio Marquina in 1960. “Relevance of the finding consists in confirmation by archaeological information of historical data regarding the sacred precinct of Mexico –Tenochtitlan, which occupied nearly 500 square meters”, mentioned Raul Barrera Rodriguez, in charge of the INAH Program of Urban Archaeology (PAU). The discovery took place in the plot located at 16 of Guatemala Street, in Mexico City Historical Center, after 2 months of archaeological work.