Ключевые слова: architecture, black, blue, building, business, business center, city, clouds, concrete, construction, construction business, construction machinery, crane, design, gantry crane, glass, gray, height, highrise building, housing, industry, light, machine, machinery, metal, natural light, office, office building, red, shadow, sky, skyscraper, stone, sunlight, technology, tower crane, urban environment, white, yellow,