SAN FRANCISCO: Liu Guanglong (left), head of a 10-member delegation from Lv Liang, Shanxi province, presents a paper-cutting art work as a gift to Sun Jianhua (right), culture consul from the Chinese Consulate General on March 25. Using scissors and paper, Liu and his members are traveling the world to promote friendship and understanding through paper-cutting, a Chinese tradition which has a history of 1,500 years and was enlisted as one of the UNESCO Intangible Cultural Heritages in 2009. [Photo/Chang Jun]