Cahokia: Top Photos

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

Monk's Mound is the central focus of this great ceremonial center. A massive structure with four terraces, it is the largest man-made earthen mound in North America. Facing south, it is 92 feet (28 m)
Monk's Mound is the central focus of this great ceremonial center. A massive structure with four terraces, it is the largest man-made earthen mound in North America. Facing south, it is 92 feet (28 m)… © Wisconsin Denizen, CC BY 2.0, via Wikimedia Commons

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