
China opens world's highest expressway tunnel, slashing travel time
The Tianshan Shengli Tunnel, a 13.75-mile (22 km) long tunnel at the center of the Urumqi-Yuli Expressway, and the world s longest, is now open in China. Constructed over five years using innovative approaches, the tunnel halves the travel time between the regional capital, Urumqi, and the city of K...



















