map of all region

West and east land are origional Azeroth in level 60. North land is new region of Azeroth in level 80, Northrend. South land is other new region of Azeroth in level 90, Pandaria.

Right planet is the Azeroth.

Left planet is new origion in level 70, Outland. Middle planet is the origional outland in level 100, Draenor.