From cryptic lettered buttons to baffling apartment numbering systems, even getting to the right floor can feel like you’ve stumbled into a puzzle game. If you're used to a system where the first digit tells you the floor and the second the unit (say, 34 = third floor, fourth apartment), Austria’s approach can be disorienting. Instead of "Ah, number 42 means fourth floor, apartment 2," it’s more like “How many apartments does it look like this building has per floor?