Ключевые слова: antique, artist, beautiful, blue, czech republic, device, europe, european, famous, hang, hanging, historic, historical, history, landmark, letna, letna hill, letna park, line, metal, metallic, metronome, music, musicians, power, power lines, prague, red, shoes, sky, symbol, tennis, tourism, touristic, tourists, travel, viewpoint, vratislav novak,