The longest railway tunnel in the world is a 35-mile long journey located in the south of Switzerland surrounded by the ...
Discover the challenges and innovations behind the Gotthard Base Tunnel, the longest railway tunnel ever constructed, which cost over 12 billion euros. This monumental project connects Switzerland and ...
Japan built the Seikan Tunnel in 1988, creating the world's longest railway tunnel with an undersea section. The engineering marvel linked Honshu and Hokkaido beneath the Tsugaru Strait and took ...
Stretching 18 km between Denmark and Germany, this €7bn immersed tunnel is the world’s longest road and rail link. By 2029, it will replace a 45-minute ferry trip with a 10-minute drive or a 7-minute ...
Swiss engineer Carl Eduard Gruner first imagined it in 1947: a massive tunnel, unprecedented in length, buried a mile and a half under Switzerland's symbolic Gotthard mountain range. Nearly seven ...