Happy Mid-Autumn Festival!
Citizens solve riddles during a folk festival in Hefei, east China's Anhui Province, Oct. 4, 2017. This year's Mid-Autumn Festival falls on Oct. 4. Mid-Autumn Festival, the 15th day of the eighth month on China's lunar calendar, is an occasion for family gatherings and well-known as the time to eat mooncakes. (Xinhua/Liu Junxi)