Ключевые слова: abstract, architectural, architecture, backdrop, background, building, city, construction, design, downstairs, emergency, exit, exterior, facade, factory, fire escape, high, industrial, industry, modern, multistorey, multistory, outdoor, outdoors, outside, pattern, safety, shadow, stair, staircase, stairs, stairway, structure, surface, texture, upstairs, urban, wall, wallpaper, warehouse,