Ключевые слова: architecture, ballet, beautiful, blue hour, building, city, cityscape, europe, evening, exterior, famous, glow, house, illuminated, illumination, landmark, light, national opera, night, norway, norwegian, opera, opera house, oslo, outdoor, reflection, scandinavia, scandinavian, scene, scenic, sightseeing, street, summer, theater, theatre, tourism, town, travel, twilight, urban, vacation,