Ключевые слова: ancient, archaeological, architecture, bolgar, bolghar, building, bulgar, bulgaria, bulgars, cathedral, christianity, church, city, column, complex, crescent, culture, day, famous, historic, historical, history, islam, islamic, kazan, landmark, marble, medieval, minaret, mosque, museum, muslim, old, orthodox, religion, religious, ruin, russia, russian, shrine, sky, stone, tatar, tatarstan, temple, tourism, tower, village, wall, white,