Eberron Cosmology

The Material Plane

 * Syberis - The Dragon Above, home to celestials (couatl)
 * Eberron - The Dragon Between, home to dragons, giants, monstrosities, mortals
 * Khyber - The Dragon Below, home to aberrations (daelkyr), fiends (demons), oozes

The Transitive Planes

 * The Astral Plane - Home to githyanki and the city of Tu'narath
 * The Ethereal Plane - Home to githzerai

The Planes Beyond

 * Daanvi - The Perfect Order, home to constructs (modrons, inevitables)
 * Dal Quor - The Region of Dreams, home to fiends (yugoloths)
 * Dolurrh - The Realm of the Dead, home to undead
 * Fernia - The Sea of Fire, home to fire elementals
 * Irian - The Eternal Dawn, home to positive energy
 * Kythri - The Churning Chaos, home to aberrations (slaadi)
 * Lamannia - The Twilight Forest, home to earth elementals
 * Mabar - The Endless Night, home to negative energy
 * Risia - The Plain of Ice, home to water elementals
 * Shavarath - The Battleground, home to celestials (angels), fiends (devils)
 * Syrania - The Azure Sky, home to air elementals
 * Thelanis - The Faerie Court, home to fey
 * Xoriat - The Realm of Madness, home to aberrations (daelkyr)