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 IST
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 IST