The sales office of Mountain and City is just located at the picturesque Nanshan district, which the view has inspired the designers for their idea of the interior. The landscape inside the sale office is assembled with mountains and valleys as well. The walls and rooms are conglomeration of triangular planes and oblique line sets, in different tones of gray, the outcome is a powerful and dynamic topographic chart. The same geometric of the walls has extended to the grand marble floor, the irregular triangular patterns with various kinds of marble have been well arranged in the same manner.