The restoration of the Bell Towers Complex of the National Palace of Mafra begun in September 2018.$0 The two roman bell-towers of Mafra include a remarkable set of 120 cast bronze, cup-­shaped bells, ranging from about twelve tons huge bells to six pound high-­pitched bells. $0 $0 $0 $0 $0 Descent of some bells of the North Tower. The weight of the first bell was of 7,300 kg, confirmed by the balance of the crane.$0 $0   $0   $0