The World’s largest and deepest rail tunnel Gotthard Base Tunnel is located in which country?
The World’s largest and deepest rail tunnel Gotthard Base Tunnel is located in which country?A. Denmark
B. Sweden
C. Switzerland
D. United States
B. Sweden
C. Switzerland
D. United States
The Gotthard Base Tunnel is the world’s longest and deepest tunnel. It runs under the Swiss alps between the towns of Erstfeld in the north and Bodio in the south.