MEXICO CITY.- Shafts of the pilasters at the Building of the Columns, where one of the most enigmatic moments of El Tajin history is carved in bas-relief, will gather for the first time at the National Museum of Anthropology (MNA) in the great exhibition Seis ciudades antiguas de Mesoamérica. Sociedad y Medio Ambiente (Six Ancient Cities of Mesoamerica. Society and Environment), to be opened in March 2011. Eighteen sandstone discs with a diameter of 108 centimeters, which juxtaposed reach a height of 100 centimeters, formed the middle part of 3 columns that must have supported the palace of an ancient ruler of El Tajin more than 1,000 years ago, in the area that today is the Mexican state of Veracruz. The exhibition organized by the National Institute of Anthropology and History (INAH), is being mounted at the Temporary Exhibition Hall of the National Museum