Ключевые слова: abstract, architecture, avenue, background, block, blue, brick, building, cement, center, city, cityscape, cobble, cobblestone, concrete, construction, dark, design, empty, exterior, floor, footpath, granite, gray, ground, material, nobody, old, outdoor, pattern, pavement, paving, road, rock, rough, sidewalk, sky, square, stone, street, structure, surface, texture, textured, tile, tiled, urban, walkway, wall,