Watch: World's longest rail tunnel in Switzerland
The Gotthard Basel Tunnel will save the train journey from Zurich to Milan in northern Italy down to two hours and 40 minutes.
Jun 10, 2016, 11:45 AM ISTWorld's longest rail tunnel sees light at end of decades' wait
When Swiss engineer Carl Eduard Gruner came up with the idea to build the world's longest rail tunnel under the Alps in 1947, he predicted the visionary project could be finished by the start of the 21st century.
May 29, 2016, 11:51 AM IST