Dayton Daily News: See for yourself why Ohio’s mysterious Serpent Mound is a must-visit place
See for yourself why Ohio’s mysterious Serpent Mound is a must-visit place
Aerial views of the oldest surviving animal effigy mound in the world. Serpent Mound is the largest effigy mound in North America — and one of only two effigy mounds in Ohio. It's worth the 90-minute ...