A woman wearing Han Chinese clothing, the national costume of Han people in China, plays Guqin, a seven-stringed plucked instrument popular in ancient China during a sacrificial rite ahead of the winter solstice day, or the Dongzhi Festival which falls on Dec 22 this year, in Lanzhou, capital of Northwest China's Gansu province, Dec 21, 2014. Traditionally, the Dongzhi Festival in China is a time for the family to get together. [Photo/Xinhua]