People attend the opening of "Greek Photographers focusing on Beijing" photo exhibition in Piraeus port, Greece, on April 24, 2018. Piraeus port has warmly welcomed Chinese in recent years, becoming a strong symbol of Sino-Greek friendship and cooperation. As such, the port is hosting a photo exhibition "Greek Photographers focusing on Beijing" from April 24 to May 4 to bring Greeks closer to China's capital. (Xinhua/Lefteris Partsalis)