Ключевые слова: alps, alternative, architecture, artificial, austria, blue, concrete, dam, day, development, electricity, energy, engineering, europe, famous, generation, glacier, grass, green, high, hiking, hydroelectric, industry, lake, landscape, malta, maltatal, modern, mountain, nature, outdoors, place, power, reservoir, rock, scenics, sky, snow, structure, summer, tauern, technology, tourism, travel, valley, wall, water,