Sigil

[Fox²]

The most famous planar metropolis of all is the city of Sigil. Located at the center of the Outer Planes and built on the inner surface of an enormous ring, Sigil claims to be the true crossroads of the multiverse. The city is ruled by the dreaded Lady of Pain, an enigma credited with enormous power— including the ability to bar divine beings from her realm.

Bards call Sigil the City of Doors due to its large number of portals, but the locals aren't that poetic. They just call it the Cage, a name suited to a city that's tough to get into and tough to leave. Not just physically—though unless you know a little something about portals, even that's a challenge—but emotionally. After all, what could you ever need that you couldn't find in Sigil? The place has everything, and then some. It's a filthy, noisy place, with smokechoked alleyways and crowded streets, but Sigil is alive in a way that no other city could ever hope to be.

As befits its paradoxical nature, Sigil is in the center of an infinite plane (the Concordant Domain of the Outlands), floating above an infinitely tall spire and built on the inside of a gigantic hollow ring of unknown material. The place has no sun or moon and no real "horizon," and only naïve visitors wonder aloud about what's on the other side of the ground.

The only way in or out of the Cage is through its many interplanar portals. Locals claim that you can get anywhere from Sigil if you just know the right portal. While that may be an exaggeration, it isn't far from the truth. See Entering and Exiting Sigil, below, for more on the portals that give the city its reputation as the gateway to everywhere.