A girl shows a set of commemorative stamps and envelopes featuring paintings of China’s Grand Canal on June 23, 2014. The postal products are issued to celebrate the south-north canal’s winning of world heritage status granted by the UN cultural agency UNESCO on June 22, 2014. Only 20,000 sets of the limited edition stamps and envelopes are offered for sale in Zhejiang province. [Photo: China News Service/ Li Chenyun]