Limbo

History
If the Void had a star (which it does not need as clouds of essence float through the Void, lighting the realms with an eternal glow or a constant eerie dimness), Limbo would be it. Limbo is the largest mass ever discovered in the Void and unchained realms actually seem to orbit Limbo. It has no anchor and does not move. It is a sphere, like a planet, and has lush biomes of splendid variance and magnificent cities… or it did. Today, Limbo is ruled by Trigon, said to be the most powerful demon to ever gain power within the Void.

Trivia

 * Souls of atheists go to Limbo.