In Pics: World’s first ring high-speed railway in southern China

Photo shows the 653-kilometer-long ring high-speed railway in Hainan province of southern China. The line runs along almost all the important cities and famous landscapes in the province. The rail began operation at the end of 2015 and transported 25 million passengers in 2017. The rail has tackled many technical difficulties including prevention of sea water erosion, high temperatures and humidity, as well as thunders and earthquakes.