Ключевые слова: aerial, agriculture, architecture, austria, austrian, blocks, bridge, building, capital, city, cityscape, cloud, danube, district, downtown, environment, europe, evening, forest, green, hill, horizon, inspiration, kahlenberg, landmark, landscape, metropolis, monument, mountain, nature, outdoor, reflection, residential, river, road, sky, skyline, sun, sunrise, sunset, top, tourism, tower, town, travel, valley, vienna, view, water, yellow,