Photo taken on June 4, 2017 shows a scene of the Vikos Gorge, Greece. About 340 km northwest of the capital Athens the Vikos Gorge lies on the southern slopes of Mount Tymfi, with a length of about 20 km, depth ranging from 450 to 1600 m and a width ranging from 400 m to only a few metres at its narrowest part. With its natural beauty and scientific value, it is loved by both outdoor enthusiasts and researchers in various fields. (Xinhua/Liu Yongqiu)
