The idea for the Gotthard Base Tunnel – a railway tunnel through the Swiss Alps – was first floated in the 1960s. It opened in 2016.
Daily Express :: News Feed
The world’s deepest tunnel that’s an incredible 35 miles long that cost £9.6bn
The idea for the Gotthard Base Tunnel – a railway tunnel through the Swiss Alps – was first floated in the 1960s. It opened in 2016.
Daily Express :: News Feed
