The Liminal Realm of The Machine
Superimoposed upon this world in a quantum state, there exists a nearly colorless realm of fog, steel, crystal, and impossible metals. A vast and impossible computer composed of a great many parts acting in perfect harmony, even as they decay. Because not even the omnipotent can maintain infrastructure this vast. It all vaguely mirrors the Fallen World as you'd know it. Where your favorite restraunt is, there's probably some sort of massive power module humming away with entropic energies. At the park, you'll likely find the crumbling outer shell of a suspended megastructure far above, somehow suspended, and perfectly geometrical, even as it falls to pieces. Your home might be a little different though… A place that is lived in tends to invite lights, engines, pipes, and other intricacies that welcome exploration.