Ключевые слова: abstract, architecture, austria, austrian, background, blue, board, building, business, center, city, cityscape, commercial, company, construction, contemporary, corporate, design, district, downtown, exterior, facade, futuristic, glass, letters, logo, modern, name, new, office, perspective, plate, red, reflection, sign, skyline, skyscraper, steel, strabag, street, structure, tall, technology, urban, viena, vienna, wall, wien, window,