Students learn how to make zongzi, a pyramid-shaped dumpling made of glutinous rice wrapped in bamboo leaves and stuffed with various fillings, at a local school in Rui'an, East China's Zhejiang province, June 8, 2013. Eating zongzi is a traditional custom during Dragon Boat Festival . The festival, also called the Duanwu Festival, is celebrated on the fifth day of the fifth month according to the Chinese calendar. [Photo/Xinhua]

A seller arranges zongzi for sale before Dragon Boat Festival at a local market in Taipei, Taiwan, June 8, 2013. [Photo/Xinhua]