Local people perform dragon dance during a memorial ceremony to commemorate the 611th anniversary of ancient Chinese navigator Zheng He's visit in Semarang, capital of Central Java province, Indonesia, on July 31, 2016. Zheng He commanded expeditionary voyages to Southeast Asia, South Asia, Western Asia, and East Africa from 1405 to 1433. Semarang is one of several ports in Java visited by him in his seven expeditions to the Western Ocean. [Photo/Xinhua]