Of course. Back home, in my world, there were nine realms, all connected by Yggdrasil, the world tree. Asgard, land of the Aesir. Midgard, land of man. Jotunheim, land of the giants. Vanaheim, land of the Vanir. Hel, land of the dead. Alfheim, land of the elves. Svartalfaheim, land of the dark elves. Niflheim, land of ice. Finally, Muspelheim, land of fire.