Ключевые слова: abstract, architecture, background, black, building, city, concept, construction, crossing, crossover, danger, dark, empty, end, entrance, exit, forward, glowing, graffiti tunnel, inner, inside, interior, ladder, light, line, modern, nobody, pass, passage, pedestrian, perspective, place, road, route, safety, scene, space, stairs, stairway, step, subway, tiling, transport, tunnel, tunnel walking, underground, urban, walk, wall, way,