Nowadays, these huge machines allow for the construction of the longest railway tunnels in the world, as they can span a diameter of up to 17m and over 150m in length, weighing thousands of tonnes.

A brand new tunnel set to connect Denmark to Germany is underway. The 11-mile long passage is costing a huge $7.9 billion but ...

Did you know that the Gotthard Base Tunnel in Switzerland, the longest rail tunnel in the world, runs deeper than any other tunnel, reaching up to 2.3 kilometres (1.4 miles) below the surface?

The Gotthard Base Tunnel currently holds the world record for being the world's longest and deepest railway tunnel, spanning the 35.5-mile distance between the cantons of Uri and Ticino.

1 / 5 | Name the longest rail tunnel in the world which is also the first flat route through the Swiss Alps?

Here’s a list of the top 10 longest railway tunnels in the world, showcasing the incredible feats of human innovation: The Gotthard Base Tunnel holds the title of the world’s longest railway ...

The Fehmarnbelt Tunnel will cut through the Baltic Sea, at a lowest depth of 130ft, connecting Puttgarden, Germany and Rødbyhavn, Denmark. The 11-mile passage will be the world's longest road and ...

Seikan Tunnel stretches 53.9 km and stands as Japan's longest tunnel. It is located beneath the Tsugaru Strait and connects the islands of Honshu and Hokkaido ...