Gjallarbrú
Gjallarbrú is a significant location in Norse mythology, described as a bridge that spans the river Gjöll. It is famously guarded by the female giant Móðguðr. This bridge is the sole crossing point into the realm of Hel, the underworld, and is therefore a vital passage for the spirits of the dead.
The name Gjallarbrú itself can be interpreted as "the roaring bridge" or "the loud bridge," possibly referring
In the mythology, Baldr's journey to Hel after his death involves traversing Gjallarbrú. Hermóðr, sent by Odin