Ключевые слова: ancient, arch, architecture, border, building, castle, celestines, christianity, czech republic, day, entrance, europe, fortress, german, germany, gothic, heritage, historic, historical, history, interior, landmark, lusatian ridge, medieval, middle ages, monastery, monastic order, monument, mountains, old, oybin, religion, ruin, saxony, tourism, tourist, travel, zittau mountains,