A journalist takes a photo of a damaged antique clock at the Palace of Blessings to Mother Earth (Yi Kun Gong) in the Palace Museum in Beijing on May 5, 2013. A male tourist broke a window of the palace and the window damaged the clock on Saturday. [Photo/Lin Hui]

Beijing's Palace Museum Curator Shan Jixiang (right) talks to journalists at the museum's Palace of Blessings to Mother Earth (Yi Kun Gong) on Sunday after an antique clock was damaged by a tourist on Saturday. The damaged clock is seen removed from the exhibition. [Photo/Lin Hui]