Sigil

Sigil is a taruoid-shaped city closed to the outside world of the Outlands by its "floor" but open to all other planes of existence through its plethora of portals to other realms.

Clan Bathoon
This dwarven clan migrated from Sigil to become the lords of a small region east of Mishkenet in Ardun at the request of the Pharaoh Hepshut.

Portal to Pazunia
A portal to Sigil through a large temple to Pazuzu in Sigil, which opens to an Aerie of Aracockra on the Pazunia side that serves as a sort of sanctuary and monastery. Since it is the only two-way gate between Pazunia and Sigil, it is very heavily guarded and highly taxed. Sigil supports the temple as the best way to prevent the gate from being used by demons to invade the city. One cannot pass through the gate simply by falling, they must have a flying speed of at least 20 to get through, otherwise they rebound back to their origin. On the Pazunia side, the Aaracokra live in a large fortified aerie that is capable of repelling ancient dragons and demon onslaughts through its assortments of balistae and magical weaponry. As a last resort, there is a physical gate on both sides that can be shut from the opposite side. There are no Iron Fortresses within several dozen kilometers of the PazuSigil Gate for a mutual fear that the demons might use the forts to attack the gate, or the Sigilites might use the gate to attack the forts.