Chinese. Pakistan. 1300 km. A bunch of tunnels, one 3.5 km long. Some sections – 4700 meters above sea level. Check out the video, especially from the 50-second mark. Seems to cost about a quarter of what the Crimea bridge did.
Chinese. Pakistan. 1300 km. A bunch of tunnels, one 3.5 km long. Some sections – 4700 meters above sea level. Check out the video, especially from the 50-second mark. Seems to cost about a quarter of what the Crimea bridge did.