Tourists take a selfie with Chinese police officers in Dubrovnik, Croatia, on Aug. 9, 2019. Chinese police officers who had been patrolling in Croatia for a month during tourist season finished their work here on Wednesday. Eight officers from east China's Jiangsu Province patrolled with their Croatian counterparts in Zagreb, Zadar, Dubrovnik and Plitvice Lakes National Park, all popular tourist destinations where each year more and more Chinese come to visit. (Xinhua/Gao Lei)