銆€銆€Photo taken on Nov. 7, 2012 shows puppets and masks of Nuo opera, one of the most popular folk operas in southwest China, displayed at the folk arts museum of Shandong University of Art & Design in Jinan, capital of east China's Shandong Province. Shandong University of Art & Design has collected over 3,000 folk art articles in 20 years and set up this museum to retain and introduce the historical state of Chinese traditional folk arts. (Xinhua/Guo Xulei)