Planescape cosmology

Sigil

Outlands

 

Outer Planes

Astral Plane

 

Prime Material Plane (Athas, Abeir-Toril, Krynn, Oerth, wildspace)

 

Inner Planes (Elemental, Paraelemental, Quasielemental)

Ethereal Plane

 

demiplanes

Planescape cosmology

Planescape iamgriffin