Cahokia Mounds State Historic Site (UNESCO/NHK)

Cahokia Mounds, some 13 km north-east of St Louis, Missouri, is the largest pre-Columbian settlement north of Mexico. It was occupied primarily during the Mississippian period (800—1400), when it covered nearly 1,600 ha and included some 120 mounds. It is a striking example of a complex chiefdom society, with many satellite mound centres and numerous outlying hamlets and villages. Source: UNESCO TV / © NHK Nippon Hoso Kyokai URL: http://whc.unesco.org/en/list/198/