Mechanus (Dungeons and Dragons)
From Multiversal Omnipedia
Mechanus is the Outer Plane embodying the concept of lawful neutrality, also known as the Clockwork Nirvana of Mechanus or simply Nirvana. Mechanus is a vast, interlocking plane of gears and clockworks, maintained by the modrons under the direction of Primus. Other residents of the plane include the inevitables, moignos and formians. Unlike many other Outer Planes, Mechanus is not divided into a series of layers, but instead life flourishes on the surface of various gears. Two of the most notable locations are Regulus, home of Primus, and Menausus, a former layer of Arcadia.