Stairs
landing or platform: A landing is, structurally, an intermediate floor between flights of stairs. It is typically used to allow stairs to change directions, or to allow the user a rest. As landings consume floor space and are structurally floors, they can be quite expensive to build. However, changing the direction of the stairs allows stairs to fit where they would not otherwise, or provides privacy to the upper level as visitors downstairs cannot simply look up the stairs to the upper level due to the change in direction.