Ключевые слова: background, blue, building, bulgaria, concept, culture, drop, entertainment, europe, famous, fountain, freshness, front, garden, green, group, history, holiday, ivan vazov, jet, lake, landmark, landscape, marble, meeting, mirror, national, nature, park, people, popular, recreation, reflection, relax, sofia, splash, spring, statue, theater, travel, tree, urban, vacation, water, waterfall, white,