Ключевые слова: abstract, architecture, backgrounds, blue, building exterior, built structure, cable, cement, city, city life, city street, cityscape, closeup, color image, colored background, composition, concrete, concrete wall, day, design, electricity, empty, equipment, flooring, gray background, hole, horizontal, madrid, material, netherlands, no people, old, outdoors, pattern, rough, shadow, sky, spain, sparse, spiral, stack, sunlight, technology, textured, vertical, weathered, wire,