Diagram of one interpretation of the Nine Worlds of Norse Mythology.
Manly P. Hall
Source: <a rel="nofollow" class="external free" href="http://www.sacred-texts.com/eso/sta/img/02800.jpg">http://www.sacred-texts.com/eso/sta/img/02800.jpg</a> , and thus from Manly P. Hall's 1928 book "The Secret Teachings of all Ages".  The text and black-and-white illustrations from that book (but not the color illustrations) are out of copyright in the United States.