Could the strange actually be true? Time-Life Mysteries of the Unknown takes readers on a tour of the eerie and unexplained - from the search for vanished civilizations to the science of real-life zombies, from famous UFO sightings to encounters with ghosts and otherworldly creatures, and much more. This rich full-colour guide offers scores of photographs and documents that shed new light on the world's most puzzling supernatural events and paranormal phenomena. Mysteries of the Unknown also ventures into strange geographical locations where the laws of nature appear to be suspended and examines the paradoxes of ancient scientific instruments that seem far too advanced for their time. And meet the scientists and dedicated amateur researchers who are unlocking the secrets to the great mysteries of history - and the future.