Ключевые слова: abstract, airport, architecture, blue, building, business, center, city, construction, corridor, design, empty, entrance, escalator, floor, futuristic, gate, glass, hall, hallway, indoor, indoors, inside, interior, light, mall, metal, metro, modern, nobody, office, panorama, perspective, reflection, roof, shanghai, stair, staircase, stairway, station, steel, structure, traffic, transportation, urban, walk, walkway, wall, window,