Passengers walk in a subway routeway decorated with wall paintings in Guangzhou, capital of south China's Guangdong province, July 11, 2013. An art exhibition displaying 32 wall paintings by 32 artists with environment-friendly paint was opened recently in the routeway of the Yuexiu Park Station of Guangzhou subway. These paintings will be auctioned to support art education in needy schools. [Xinhua/Mao Siqian]
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