File this one under nuts. Mimicking that of a hamster wheel, the conceptual design puts a handful of rooms in a giant wheel like device. As you turn the wheel – looks like it takes some leg power – and alter its orientation it changes its functionality. In other words, turn it 180 degrees and the kitchen becomes the ceiling and the floor the living room. Hey, it might be viable in a really long tube like design. Ideal for NYC living where you often feel like a rodent anyway.