Karshvar
In the Avesta, reference is made to seven karshvar (Avestan: 𐬐𐬀𐬭𐬀𐬱𐬀𐬎𐬎𐬀𐬭𐬀, romanized: karšvar, lit. 'delineated land' > Persian: kišvar), climes or zones, organizing the world map into a seven-storied ziggurat representing the cosmic mountain. The world is referred to as the haft keshvar "seven climes".