architecture, symmetry, roof, corridor, stairways, symmetrical, shades, ceiling, museum, design, lighting, building, stairway, staircase, facility, semidarkness, passage, symmetric, shade, passageway, protective covering, illumination, dark, side
Suzhou Museum, I. M. Pei, architecture, symmetrical, symmetry, design, roof, ceiling, lighting, shades, corridor, stairways