Category

International tunnels

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rail tunnel beneath the English Channel between France and Great Britain

Mont Blanc Tunnel

road tunnel connecting France and Italy

Helsinki-to-Tallinn Tunnel

planned undersea rail connection between Finland and Estonia

Brenner Base Tunnel

thumb|upright=1.4|alt=Rail map of Switzerland and surrounding countries|The NRLA project is the centrepiece of the Central European rail network. The New Railway Link through the Alps (NRLA; , , ), is a Swiss construction project for faster north–south rail links across the Swiss Alps. It consists of two axes with several improvements along these rails including three new base tunnels several hundred metres below the existing apex tunnels, the Gotthard Base Tunnel, the Lötschberg Base Tunnel, and the Ceneri Base Tunnel. Swiss Federal Railways subsidiary AlpTransit Gotthard AG and BLS AG subsid

Fréjus Road Tunnel

highway tunnel between France and Italy

Strait of Gibraltar crossing

Japan–Korea Undersea Tunnel

a proposed tunnel connecting Japan and Korea

Karawanks Tunnel

international railway tunnel between Austria and Slovenia

Gaza Strip smuggling tunnels

tunnel in Palestine and Egypt

Detroit–Windsor Tunnel

vehicle tunnel between Canada and the United States