Rainbow tunnel under construction in Central China(1/5)

A tunnel decorated like a rainbow on both ends is under construction on a road in Zhoumou county, Central China’s Henan province, Jan 15, 2015. The 400-meter-long tunnel, the first and the only one of its kind in China, has a total investment of nearly 100 million yuan ($16 million), according to construction workers. From both ends to the middle section, the color varies from purple to blue to help drivers get used to the light change in the tunnel, sources said. [Photo: China News Service/Feng Lei]