We finished our tour of Mexico City by going to the El Zocalo or what we would call the town square. Today it is the largest public square in the Western Hemisphere and the third largest in the world (after the Tiananmen Square in the center of Beijing and the Red Square in Moscow). It is the main square in Mexico City. Its formal name is Plaza de la Constitución- and forms the heart of the city since the Aztec rule. Included on this huge square are the National Palace and the Metropolitan Cathedral. Alongside the plaza are remains of an Aztec (Aslan) temple, the founding of the city of Tenochtitlan in 1325. These have been unearthed by the Archeological Institute and they still continue to work in this area studying the Aztec peoples. They have determined there were 7 temples here. Beginning with the first one, each would sink into the lake over the years. Then another would be built right on top of it and continuing to current times.