A vehicle moves thorugh the Zhongnanshan tunnel which passes through the Qinling Mountains in northwest China's Shaanxi province, January 17, 2007. The 18-kilometer tunnel, which will open on January 20, is equipped with lights that show different colors and patterns to make drivers feel more alert and is expected to shorten the journey from Zuoshui county to Xi'an in Shaanxi province to about one hour from three, China Daily reported. [CFP]

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