Real monsters are behind our greatest legends. Stories of giants and beasts permeate our past and fascinate us in the present. From the Bible's Goliath to the Cyclops of Greek mythology, our colossal adversaries inspire tantalizing tales of terror. Now, new evidence suggests that many of these mythical creatures may have been anything but made up. Could the real labyrinth of a man-bull named the Minotaur have been discovered? Do fossils prove Cyclops legends are true? Could a monster named Grendel from the famous tale of Beowulf actually have stalked a banquet hall in Denmark? New evidence suggests many of our giants and beasts were real - but in ways you've surely never imagined.