Chinese artists perform Madama Butterfly during the 63rd Puccini Festival in Viareggio, Italy, on Aug. 18, 2017. The China National Opera House performed Madama Butterfly in Puccini's former home Torre del lago of Viareggio on Saturday, after it first brought Turandot here during the 61st Puccini Festival in 2015. (Xinhua/Jin Yu)