The Duku highway in Xinjiang, known as the region's most picturesque road, is a 560 km-long route passing through the heart of the Tianshan Mountain Range. Duku attracts hundreds of thousands of tourists each year. For those who are willing to stop to listen to the story behind the iconic highway, Chen Jungui, a veteran soldier who helped build it more than 40 years ago, has never stopped telling it. CGTN's Xu Mengqi reports.