It's A Mystery: Ancient Sites brings together five of the most interesting, most talked-about mysteries in history. Mystery Hill: America's Stonehenge, The Trojan War: Myth or Reality?, Easter Island: The Mystery of the Statues, Nazca: The Mystery of the Lines, and Cahokia: Largest City of Ancient America. Pula brings together the facts from a variety of experts. She also includes theories and speculation from others in the field and she closes each mystery with her own beliefs, based on her extensive research. If you think you know all the facts about these interesting locations, think again