The Nine Realms were the nine main worlds of the universe interconnected through the world tree, Yggdrasil.
- Asgard - home of the Asgardians.
- Jotunheim - home of the Frost Giants.
- Midgard - the Earthly plane of existence and home to humans.
- Alfheim - home of the Light Elves.
- Nidavellir - Home of the Dvergr (Dwarves).
- Vanaheim - Home of the Vanir who are the sister race of the Asgardians.
- Hel - Realm of the dead who are neither honored nor dishonored. It is ruled by Hela.
- Muspelheim - home of the Fire Demons.
- Svartalfheim - home of the Dark Elves.