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Valhalla, in Norse mythology, is Odin's hall, the home for those slain gloriously in battle. With 500 hundred doors, there is room enough for all those chosen. Those who do not get to Valhalla end up in the home of the dead, Helheim, a place beneath the underworld, Niflheim.

The largest impact crater on Jupiter's moon Callisto. Valhalla has a bright central region 600 km across, and concentric rings extending to a diameter of approximately 3000 km around that.