The Book of Unexplained Mysteries

How were the hunter-gatherers of Göbekli Tepe able to build a series of stunning stone monuments six thousand years before Stonehenge? Was the so-called 'Wow!' Signal a radio transmission from deep space, or the ambient resonating frequency of a passing comet? What happened mid-Atlantic to the passengers and crew of the Mary Celeste , leaving the abandoned ship to sail on by itself? Wonderful and weird, here are twenty incredible mysteries that continue to enthral and perplex. Each unexplained m