The Laerdal Tunnel is a 24.51-kilometre long road tunnel, the longest in the world, connecting the villages of Lærdal and Aurland, but fundamentally linking the capital of Oslo to Bergen and the country’s second-largest city of Bergen. To set the records straight, Laerdal Tunnel is the longest “road” tunnel. The true longest tunnel is the Gotthard Base Tunnel in Switzerland at 57 km, but it’s used only by trains