Greek President Prokopis Pavlopoulos is seen at the opening of the exhibition "From the Forbidden City: The Imperial Apartments of Qianlong" at Acropolis Museum in Athens, Greece, on Sept. 14, 2018. A rare exhibition on China's Emperor Qianlong is going on display at the Acropolis Museum, with exquisite artefacts that will be presented for the first time to the public from Sept. 15 to Feb. 14, 2019. (Xinhua/Marios Lolos)