Considered a wonder of the ancient world, the Newark Earthworks--the gigantic geometrical mounds of earth built nearly two thousand years ago in the Ohio valley--have been a focal point for archaeologists and surveyors, researchers and scholars for almost two centuries. In their prime one of the premier pilgrimage destinations in North America, these monuments are believed to have been ceremonial centers used by ancestors of Native Americans, called the -Hopewell culture, - as social gathering places, religious shrines, pilgrimage sites, and astronomical observatories. Yet much of this...