Construction Switzerland took 17 years to tear through the Alps and build the world’s largest railway tunnel, a 57.1 km passage under 2,300 meters of rock, with 50 °C heat and 28.2 million tons excavated to connect the north to the south of Europe. Ana Alice 20/06/2026 at 20:29
Rail Transport World’s Largest Railway Tunnel Has 57 Km Dug Under 2,450 M Mountain in the Alps, With Underground Stations, Temperatures Up to 46 °C, 150 Km of Auxiliary Tunnels, and Heavy High-Speed Train Operation at 549 M Altitude Alisson Ficher 09/12/2025 at 22:03
