Ключевые слова: abstract, airport, angle, architectural, architecture, background, building, concept, convention, details, device, dimishing, district, down, elevated, entrance, equipment, escalator, escalators, feature, footpath, highlights, horizontal, hotel, ideas, indoor, mall, mechanical, metal, mobility, mode, modern, moving, perspective, railing, scene, shopping, staircase, stairs, steps, store, subway, transport, underground, up, upstairs, urban, vertical, walkey, wide,