The Nine Worlds

The Nine Worlds of Norse Mythology are the nine realms that make up the universe.

They are:

Muspellheim

Alfheim

Vaneheim

Asgard

Manneheim

Jotunheim

Svartalfheim

Helheim

Nivlheim

The worlds are believed to all be connected through the world tree, Yggdrasil, and each realm borders in some way to the ones next to it on the spectrum.