Ключевые слова: ancient, antique, arch, archeology, architecture, balkans, basilica, building, bulgaria, bulgarian, christianity, church, clear sky, cloudless, columns, day, destination, detail, first bulgarian empire, great basilica, heritage, historical, history, landmark, medieval, old, orthodox, outdoor, pliska, religion, ruins, scene, sightseeing, sky, stone, structure, tourism, tourist, travel, wall, white,