Recently I've noticed a theory spreading around the scientific/philosophical world that the Garden of Eden was simply a myth of the Fertile Crescent. It's sounds plausible when you actually think about it. There are multiple different theories concerning it, but the most famous one is that the original Hebrews were cast out of the area by a more powerful tribe, and doomed to live in the outside-non-civilized wild world. By word of mouth a myth was created for why they can't live in the area that contains such great life, and thus Adam and Eve was born (the scapegoats of the Hebrew people). The guards guarding the area (angel with flaming sword can be equated with city guards of the Hittite civilization, who used bronze for their weapons, which gleamed in the sunlight as a vibrant orange) are just city guards, or something of that sort. Then the myth that they must have done something wrong, and thus the idea of original sin... and so on and so forth.
I don't believe in the theory 100%, but it is quite an interesting concept, I had sort of thought about it before, but never put the pieces together. Any other ideas concerning the Bible's myth-like qualities?