Ключевые слова: ancient, archaeological, architecture, best preserved monument, black, black chamber, bolgar, bronze, bulgar, bulgar settlements, bulgaria, bulgarian, bulgarians, center, chamber, city, complex, early iron age, excavation, heritage, historical, historically, history, internal, khanaka, list, madrasa, medieval, monument, museum, neolithic, place, republic, reserve, russia, settlement, shrine, sight, significant, tatarstan, time of the bulgar, tourism, tourist, unesco, village, volga, world,