Ключевые слова: ancient, antique, antiquity, arch, architecture, birick, blue, brick, building, bulgaria, bulgarian, city, destroyed, europe, european, fort, fortification, fortress, heritage, historic, landmark, nature, nesebar, nesebur, nessebar, nessebur, nobody, old, red, ruin, sight, sky, stone, summer, sunset, tourism, town, travel, unesco, wall,