From the outside Naf Architect & Design‘s Three Way House looks like your average Tokyo building but as soon as you step through the doors, it’s anything but conventional inside. Ladders are the main way of getting between the floors, a space-saving alternative to sets of bulky stairs, though it’s the climbing wall that really sets it apart. Able to scale an inside wall all the way from the garage to the roof terrace, the space doubles as a lightwell, making the rooms throughout feel more spacious and airy.