Asgard, the celestial city of the Aesir gods in Norse mythology
Asgard in Norse mythology: the fortress of the Aesir linked to Midgard by the Bifröst bridge, its great halls, its walls, and its fall at Ragnarök according to the Eddas.
Norse mythology
Mythical places — Norse mythology
Nine worlds hang on one tree: Yggdrasil, whose roots reach into three wells and which a dragon and four stags gnaw at constantly. Each entry describes one space in this cosmology — Asgard and the hall of Valhalla, the Bifrost bridge Heimdall guards, human Midgard, the realms of giants and of the dead — setting the scattered descriptions of the Poetic Edda against the tidy system Snorri Sturluson builds from them.
Bifröst, the rainbow bridge of the Norse gods
Bifröst in Norse mythology: the burning rainbow bridge linking Asgard to Midgard, guarded by Heimdall, that shatters beneath the fire-giants riding to Ragnarök.
Valhalla, the Hall of Fallen Warriors in Norse Mythology
Valhalla in Norse mythology: Odin's great hall for the battle-slain, the Einherjar who train daily for war, Valkyries as choosers of the slain, and their purpose at Ragnarök.
Yggdrasil, the World Tree of Norse Mythology
Yggdrasil, the cosmic world tree in Norse mythology: the nine realms it connects, its guardian creatures, Odin's sacrifice for the runes, and its role at Ragnarök in the Eddas.