Rainbows emerge at sunset on the grassland of Qiangtang, southwest China's Tibet Autonomous Region, July 11, 2009.[Yang Guang/Xinhua]
![Rainbows emerge at sunset on the grassland of Qiangtang, southwest China's Tibet Autonomous Region, July 11, 2009.[Yang Guang/Xinhua]](http://images.china.cn/attachement/jpg/site1007/20090713/000bcdb95f1d0bc4c92305.jpg "Rainbows emerge at sunset on the grassland of Qiangtang, southwest China's Tibet Autonomous Region, July 11, 2009.[Yang Guang/Xinhua]")