Audiences appreciate wheat straw patchwork Riverside Scene at Qingming Festival in a museum of Hangzhou, capital of east China's Zhejiang Province, April 24, 2011. The Pujiang wheat straw patchwork exhibition held here on Sunday presented 89 pices of works, featuring the production skill development of Pujiang wheat straw collage, one of the national intangible cultural heritages. (Xinhua/Li Zhong)