Omerth

The capital city of the Dyaarchy (and unoficially of Ermis). It is the set of autocratic power on the planet. It hosts The Arkanum and the Gnōstērion. It is also the residence of The Dyad.

It exists solely due to the great technological and magical powers of its wizards and technomancers. Otherwise gravity at the center does not exist, and powerful electromagnetic currents would arc uncontrolled through the area.