The Tower of Babel described in the Book of Genesis is not a myth.  It did exist.  It has been found.  It was a ziggurat, or stepped pyramid, located about 56 miles south of present day Bagdad, Iraq.  Its name was "Etemenanki" with means "Temple of the Foundation of Heaven and Earth."   It was dedicated to the pagan god Marduk.  It was built about the14th century BC.  It was a 7-layered pyramid, meaning it had seven stories, or steps.  The earliest pyramids were not smooth-sided like the Great Pyramid at Giza, Egypt.  The descriptions, ancient and modern, of Etemenanki are so similar to the descriptions of the Tower of Babel in Genesis, there is no doubt they are one and the same.