 It is central to national level protests such as those staged by Lopez Obrador after the 2006 Presidential Elections and the nationwide protest against crime held on August 30, 2008.Just off the Zócalo are the Palacio Nacional, the Cathedral Metropolitana, the Templo Mayor with its adjoining museum, and Nacional Monte de Piedad building.The Palacio Nacional borders the entire east side of the Zocalo and contains the offices of the President of Mexico, the Federal Treasury, the National Archives as well as murals depicting pre-Hispanic life and a large mural filling the central stairway depicting the entire history of the Mexican nation from the Conquest on.