8. Leviathan
For centuries, there have been several legends surrounding a creature known as the Leviathan. It is often mentioned by the Jewish in older texts. The Holy Bible even mentions the Leviathan in the Books of Job, Isiah, and Amos as well as in Psalms. Was this creature real, if so, what was it? Some believe Leviathan was used as a metaphor for a powerful enemy.
Others believe it to be very real. Most now believe it was more than likely a giant whale. Centuries ago, there was some speculation that whales were a little larger in some parts of the world, even over what we see now. Levithan likely was one of those larger whales, obviously embellished a bit over time.