Cahokia Mounds State Historic Site
Site of the largest prehistoric Indian city north of Mexico. Interpretive center, Woodhenge solar calendar, special events. From I-55, exit 6 IL Rte. 111. From I-255, exit 24.
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We visited this National Historical Site and World Heritage Site near Collinsville, Illinois last June. It is really surprising that it is not a National Park Service National Historical Site; it...Full Review
It is easy to spend all day at Cahokia Mounds and it is entirely free. The Interpretive Center is nicely laid out and plays a video every half hour. Guided tours are offered twice a day at 1030 and...Full Review