A resident takes a look at the first-day cover he just bought outside the Nanjing Post Office in Nanjing, capital of east China's Jiangsu Province, on Aug. 8, 2008. The commemorative postcards, stamps and first-day covers of the opening ceremony of the 29th Olympic Games were issued nationwide on Friday, the opening day of the games. [Xinhua Photo]

 Photo taken on Aug. 8, 2008 in Macao of south China shows the commemorative miniature sheet with the pattern of the National Stadium, namely the Bird's Nest, of the opening ceremony of the 2008 Beijing Olympic Games. A set of commemorative postcards, stamps and first-day covers of the 29th Olympic Games were issued in Macao to celebrate the upcoming event on Friday. [Xinhua Photo]