Norway is on track to build the world's longest and deepest road tunnel, The Rogfast, with an eye-watering price tag of $46 billion (£36 billion). Slated for a 2033 opening, this monumental ...

The world's longest tunnel, the Lrdal Tunnel in Norway, is a staggering 15 miles long and cost an eye-watering £120million to construct. Known as Lrdalstunnelen, it connects the cities of Aurland ...

Not everyone is a supporter of the Fehmarnbelt tunnel. As with all megaprojects, the eye-watering cost of construction has raised many questions over its value, while environmental campaigners are ...