There's a road in Norway that goes through a tunnel... twice - Apparently.
The Lærdal Tunnel in Norway is the longest road tunnel in the world, measuring 24.5 kilometers (15.2 miles) long. What's unusual is that it has two separate tunnels, each about 11.4 kilometers (7.1 miles) long, that run in parallel to each other, with a mountain in between. Drivers can enter the tunnel at either end, but must exit at the same point they entered, creating the illusion that the tunnel is much longer than it actually is. This curious design was chosen to reduce the impact on the surrounding landscape.