An graffiti artist paints on a 217-meter-long board near an art gallery in Mexico City, Aug. 2, 2009. [Xinhua]
![An graffiti artist paints on a 217-meter-long board near an art gallery in Mexico City, Aug. 2, 2009. [Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090804/000bcdb95f1d0be1dd7f20.jpg "An graffiti artist paints on a 217-meter-long board near an art gallery in Mexico City, Aug. 2, 2009. [Xinhua]")