David Whitley12:00, Jul 09 2021 Tunnels are usually dark, dingy and tediously practical places. But it's not all bleak underpasses – around the world, some tunnels are extraordinary historic achievements and others have been turned into incredible art projects. From monsters dug through mountains to gurgling passages through glaciers, these tunnels are destinations in their own right… 123RF The lighting inside Laerdal Tunnel in Norway has been designed to replicate a sunrise so drivers don't get bored. The Laerdal Tunnel Where? Norway Cutting through the Norwegian mountains between Aurland and Laerdal, the Laerdal Tunnel symbolises the Norwegian mission to connect the fjords by road. The tunnel is 24.5km long and the snazzy, multi-coloured lighting displays, designed to replicate a sunrise, are a part of the deal. When the tunnel opened, it was feared that drivers would get bored of the monotony. So lighting was used to make it look as cool as possible. See visitnorway.com