Annie Keary - The Scandinavian World, “The Heroes of Asgard and the Giants of Jötunheim”,1857. Vintage illustration showing the evil serpent Jormungand encircling Midgard. In the center there is Yggdrasil, the World Tree, with a wise eagle, a hawk, four stags and squirrel. Its roots support a Rainbow Bridge Bifrost and Asgard with the great hall of the Gods Gladsheim. Its roots descend to the dark region Niflheim.