Ключевые слова: abstract, architecture, beam, blue, building, business, city, closeup, color, connection, construction, corporate, cross, design, detail, engineering, environment, frame, framework, futuristic, glass, green, industry, interior, iron, joist, meeting, metal, modern, office, outdoor, reflection, roof, scaffolding, sky, steel, structural, structure, structures, support, technology, texture, tower, urban, vertical, wall, white, window,