Gotthard Base Tunnel
At $18billion, the Gotthard Base Tunnel project, a 56 Kilometre tunnel through the Swiss Alps, is probably one of the worlds most expensive projects. Danny Forster investigates what it will ... Read allAt $18billion, the Gotthard Base Tunnel project, a 56 Kilometre tunnel through the Swiss Alps, is probably one of the worlds most expensive projects. Danny Forster investigates what it will take to build the world's biggest rail tunnel.At $18billion, the Gotthard Base Tunnel project, a 56 Kilometre tunnel through the Swiss Alps, is probably one of the worlds most expensive projects. Danny Forster investigates what it will take to build the world's biggest rail tunnel.