Workers clean an area of a recently discovered archeological site in Mexico City, Friday, July 13, 2012. According to Mexico's National Institute of Anthropology and History, INAH, the site is about ... more 
Workers clean an area of a recently discovered archeological site in Mexico City, Friday, July 13, 2012. According to Mexico's National Institute of Anthropology and History, INAH, the site is about 700 years old and is a neighborhood of the Tepaneca merchants. (AP Photo/Alexandre Meneghini) less 
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Associated Press | Photo By Alexandre Meneghini
Fri, Jul 13, 2012 6:44 PM EDT