Asgard as it appears from Disney's Atlantis: Milo's Return, where it appears as the hideout of Erik Hellstorm.
Asgard is the realm of the Æsir gods in Norse mythology, being portrayed as one of the Nine realms surrounding the tree Yggdrasil. Asgard consists of smaller realms that individually do not appear as frequently in mythological poems and prose, including Valhalla, Bifröst, Fólkvangr, Himinbjörg, and Bilskirnir. It is the resting place of Æsir gods like Odin, Thor, and many others. Due to its extreme importance in the Norse myths, the myth of Asgard has been incorporated into various film adaptations.
On another note, a version of Asgard appears as one of the one primary locations of the Marvel Cinematic Universe, where it appears as a planetoid in the Marvel universe. It is ruled by self-proclaimed Asgardians, including Odin, Thor, and Loki.
Asgard as it appears in the Hand-Drawn realm of the Marvel Cinematic Universe.
Asgard as it appears in the Live-Action realm of the Marvel Cinematic Universe.