Ключевые слова: architecture, background, blue sky, bottom angle, bright light, building, business, business concept, cityscape, clean, clear sunny day, concept, construction, design, downtown, eco, ecological, ecology, energy, environment, facade, financial office district, fresh, futuristic, glass, green, green tree, leaf, looking up, metall, modern, morning sun, natural, nature, outdoors, plant, real estate, reflection, scene, skyscraper, spring, summer, sunrise dawn, sunset dusk, the city, townscape, tree, urban, window,