Just outside of Ohio’s capital, a wall of earth rises five feet from the smooth ground in a perfect circle, 1,000 feet wide. Standing inside that ring of mounded terra firma today, you can see the Moon rise right where the walls break and an ancient passageway leads to an enormous octagonal arena. Thousands of years ago, the Native Americans who built it would have been standing in that very spot, watching the same celestial scene. Each stretching 550 feet long, the walls of the Octagon Earthworks form an enclosure…
