vienna, austria, places, buildings, architectural, landmark, places of interest, building, cumulus clouds, concrete, front, field, withered, grass, green, red, trees, 1920s, housing project, housing development, national capital, seat, decade, city, district, cumulus, edifice, woody plant, twenties, european country, cloud, capital, crimson, development, plant, herb, urban area, spot, shriveled, paving, center, building material, tree