Waiters and waitresses are dressed as Red Guards to welcome guests in a restaurant in Pingliang, northwest China's Gansu province. Red Guards were a mass paramilitary social movement mobilized by Mao Zedong in 1966 and 1967 during the Cultural Revolution. People can see posters of Quotations from Chairman Mao Zedong and Portrait of Chairman Mao on the wall of the restaurant. The waiters and waitresses sing songs belonging to that period during the meal. (CNS/Zheng Bing)