MEXICO CITY.- After the success at the Los Angeles County Museum of Art and de Young Museum in San Francisco, in the United States, where nearly 600,000 persons visited it, the exhibition Colossal Masterworks from Olmeca World is now open at the National Museum of Anthropology (MNA), where visitors may admire two original colossal heads that weigh more than 4 tons each. Organized by the National Institute of Anthropology and History (INAH), the exhibition offers a panorama of Olmeca civilization, starting from invaluable pieces found in different archaeological sites in the Gulf of Mexico area, where the civilization addressed as “mother culture” of Mesoamerica flourished 4,000 years ago.