In the AD&D fantasy universe, the mundane plane ("prime material plane") is connected to a structure of divine planes, via the "astral plane". The divine, or "outer planes" each correspond to an AD&D alignment, and are traditionally represented graphically as a wheel. Starting at the "top" with Lawful Good:

• the Seven Heavens
• the Twin Paradises
• Elysium
• the Happy Hunting Grounds
• Olympus
• Gladsheim
• Limbo
• Pandemonium
• the Abyss
• Tarterus
• Hades
• Gehennna
• the Nine Hells
• Acheron
• Nirvana
• Arcadia

Compare with the Planes of Glorantha.