In any city, in any country, go into any mental institution or halfway house you can get into. When you reach the front desk, ask to visit someone who calls himself "The Holder of Reality." The receptionist will lead you up a flight of stairs that run much higher than it seems the building should be, before finally coming to a top floor, where you will find nothing more than a single door. As you approach the door, the receptionist will make herself scarce. At this point, you could turn around and look for said receptionist, but doing so will only get you lost in the halls of the mental institution forever. Instead, open the door, and continue inwards.