According to Norse mythology, Valhalla has 540 doors.
The number appears in the poem Grimnismal, one of the poems preserved in the Poetic Edda. The poem uses the hall’s enormous number of entrances to emphasize its extraordinary scale. A related line says that 800 warriors can pass through each door at once when they go out to meet the wolf at the final battle.
These figures are mythic measurements, not architectural records. Translators may render some surrounding wording differently, but 540 is the standard number associated with Valhalla’s doors. The detail is easy to confuse with descriptions of the hall’s shields, spears, or warriors, yet it is specifically the entrances that receive the number 540 in the traditional account.