Cahokia: Top Photos

America's forgotten city of 20,000 and its great mound

Monk's Mound a Pre-Columbian earthwork, located at the Cahokia site near Collinsville, Illinois.
Monk's Mound a Pre-Columbian earthwork, located at the Cahokia site near Collinsville, Illinois. © TimVickers, Public domain, via Wikimedia Commons

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