Ключевые слова: 12th century, abbey, alcobaca, alcobaca abbey, alcobaca monastery, arches, architecture, catholic, ceiling, christian, church, cistercian, colonnade, columns, dorm, dormitory, europe, european, friar, friars, gothic, landmark, medieval, monastery, monk, monks, monument, mosteiro de, nervures, portugal, portuguese, religious, ribs, room, santa maria de alcobaca, stone, unesco, vaulting, vaults, world heritage,