The phalanx of "Prairie Girls" perform during a parade at the World Expo Park in Shanghai, east China, May 24, 2010. A grand parade named "walking towards happiness" was held here Monday, the opening day of Inner Mongolia Week of the Shanghai World Expo, demonstrating the Inner Mongolia-related elements like Mongolian horses, Mongolian yurts to embody the cultural achievements of the Mongolia ethnic group.

(Source: China.org.cn)