The mermaid, Abominable Snowman, giant squid, and dragons are all parts of myths and mysteries. But are some real? The Komodo Dragon was merely the stuff of local legend--until the dinosaur-like, very real giant reptile with an orange tongue and a fierce disposition was tracked down. Giant squids, measuring as long as 100 feet, have been found to really exist. We'll explore every possible explanation for these and other legendary creatures and find out if some might really exist.