In
Norse Mythology, Valhalla (
Norw. "Valhall") is the great feast hall of
Asgard. It is where Odin reigns (but not his home, that is
Lidskjalv). It is a combined
throne room,
warrior's hall and
barracks.
Mortal men fallen in battle are picked up by Valkyries and brought to Valhalla. Every morning, these dead warriors put on their armor and go out in front of the hall. There, they have a battle - this is their sport. In the evening, the fallen ones arise and they return to the hall to eat and drink. The hog Særimner is slaughtered every day, its flesh being enough for everyone. The cook is Andrimner, and the pan is called Eldrimner. Heidrun the goat stands on Valhalla's roof, eating from Yggdrasil's leaves. Mead flows from her teats, enough to ensure all the warriors can become drunk every night.
There is an enormous amount of these warriors, of course. The hall has 5401 doors, and 8001 men can walk through each door at the same time.
Valhalla's roof is covered in golden shields. When the sun is shining brightly red, what you really see is its reflection in the roof of Valhalla.
Note 1: I have seen other numbers as well, but the main idea is: The hall is HUGE