NPRA
Currently, the drive from the southern city of Kristiansand to Trondheim in the north takes an excruciating 21 hours and requires seven ferry crossings.
To make that drive easier, the Norwegian Public Roads Administration (NPRA) has proposed the world's first underwater floating tunnel, which would be submerged in the Norwegian Sea. It's predicted to cost $25 billion (around £19 million) to build, according to Wired.
The tunnel is part of a series of proposed solutions for the Route E39 coastal highway devised by the NPRA .
Here's what it would look like: