Nirn

Nirn is the fictional planet which The Elder Scrolls series of games are set in. It means "Arena" in the Elven language. Nirn is also known as Mundus (the "Mortal Plane"), and is located between the Aetherius (the "Immortal Plane"), and Oblivion. Nirn is named "Mortal Plane" because of the inhabiting mortal races. Historically the planet itself is subjected to different eras of rise and fall of civilizations. The continents of Nirn include Akavir, Aldmeris, Atmora, Pyandonea, Tamriel, and Yokuda.