What is the name of the World Tree?

The story behind the answer

Yggdrasil is the World Tree in Norse myth—an immense ash that binds the Nine Realms together. Its roots reach to worlds like Asgard (gods), Jotunheim (giants), and Niflheim, and creatures such as the dragon Nidhogg and the messenger squirrel Ratatosk dwell on it. Because it connects and sustains the cosmos, it’s the axis of the Norse universe.

The name helps you remember it: Yggdrasil means “Odin’s steed” (Yggr = Odin; drasil = horse), recalling the tale where Odin “rode” the tree—hanging for nine nights—to gain the runes. The other options are places or figures, not the tree: Midgard is the human world, Asgard the gods’ realm, and Valkyries are battle-choosers. Think: “Yggdrasil, the giant tree Odin rode to wisdom.”