A Notable Photo of the 2014 International Earth & Sky Photo Contest.
From the photographer: "On the Great wall, apricot flowers are all over the hills. In order to protect the Great Wall, a 2400 meters long tunnel is built for the expressway passing through the wall. But before the cars enter the tunnel their headlights still light up the hills remotely."
Song Hongxiao - http://weibo.com/redsteps