Not all "myths" are based on imagination.
The Nephilim came in many different forms and shapes but one thing they all had in common, they all pretended to be some type of gods or heroes or as the Bible calls them, the men of renown! Here is the wrong KJV translation: (Gen_6:4 There were giants in the earth in those days; and also after that, when the sons of God came in unto the daughters of men, and they bare children to them, the same became mighty men which were of old, men of renown.) The original Hebrew says this: (Gen 6:4 the nephilim were in the earth in those days and also after, therefore which came the sons(or children) of God unto the daughters of man and they bore them children and they are what men in the world call mighty men(or strong men)) The pictures below show such nephilim! and here's a couple of video links to tell you about other recently reported sightings. ( https://www.youtube.com/watch?v=8Paf8W8nqNA )( https://www.youtube.com/watch?v=BHcVNAuFK1Y )