The area south of Columbus was a center for the ancient Hopewell people, who left behind huge geometric earthworks and burial mounds from around 200 BC to AD 600. This national park tells their story. The visitor center (8:30am to 5pm) provides intriguing background information, but the highlight is wandering about the variously shaped ceremonial mounds spread over 13-acre Mound City, a mysterious town of the dead. The park is 3 miles north of Chillicothe.