Asgard

Asgard is one of the Nine Worlds, more specifically the one inhabited by the Aesir tribe of Norse gods. Asgard is ruled over by Odin and his wife, Frigg. Valhalla also resides in Asgard. Due to this, Odin's army cannot be killed.
== Description ==
The original Asgard is said to have been filled with houses of different gods near the area that this god/goddess is connected to. For instance, the hall of Thor is at the highest and windiest top of Asgard. The gods and goddesses reside in palaces made of silver, gold and other precious metals. The roofs are made of silver ingots, and the palaces have bronze doors and tall stone towers. The streets are paved entirely gold. Each garden is "as vast as Boston Harbor." The edge of the city has white ramparts. In one window, rich drapes hung in tatters. Along the streets, fire braziers stood empty and cold. The statues in one garden were completely overgrown with thorn bushes. The streets were deserted. No fires burned in any of the windows.
== Appearance ==
Asgard is described in The Sword of Summer as city of palaces, each as big and impressive as Hotel Valhalla. There are roofs made entirely of silver ingots, hammered-bronze doors "big enough to fly a B-1 bomber through", sturdy stone towers that pierce the clouds, streets paved in gold, and with each garden being "as vast as Boston Harbour." And circling the edge of the city are white ramparts that "made the Great Wall of China look like a baby fence." Asgard’s widest avenue runs through a gateway in the walls, beyond which, "the ground dissolves into multicoloured light" – a roadway of prismatic fire, the Bifrost rainbow bridge (leading from Asgard to Midgard). According to Magnus, the bridge is terrifying, with it "being a rainbow in the way a nuclear explosion is a mushroom."