Ключевые слова: abstract, architecture, blue, building, business, city, cityscape, clear, closeup, clouds, cloudy, commercial, corporate, crisp, deep blue, design, detail, essen, explore, exterior, facade, frames, germany, glass, gray, light, looking up, metropolitan, modern, office, pillars, reflection, rough, sharp, sky, skyscraper, soft, stone, structure, tall, texture, urban, view, wall, wide angle, window, work,