There are many unusual places in the Cityverse: Below is a short list of highlights:
The Books of the multiverse are collections of Pages with similar properties. Change books, and you may find that basic rules of physics no longer apply, that magnetism no longer exists and life is created purely through gravity, or that matter no longer exists and power is siphoned through force of thought.
There are many planes of existence in the Cityverse, some very like our own, and some very different. All contain essentially similar physical properties, though they vary in structure and content.
The worlds of the Cityverse are without number, and their properties at least as varied as those of our own universe.
Gigantic ferrous creations of ancient races, the eternally floating bodies of dead gods or titans, rotting hulks of organic material from ancient bioinfested planets, gigantic living planet-sized organisms – all of these and more exist within the confines of the Cityverse. It is merely necessary to know where to look.