Norway's Rogfast: World's Longest and Deepest Undersea Road Tunnel

Norway is building a very long road under the sea. It is called Rogfast. This road will be 27 kilometers long. It will go very deep under the water.

The road will help people travel faster between big cities in Norway. It will replace boats that people use now. This will save a lot of time.

Building this road is not easy. Workers have to dig from both ends and meet in the middle. They use special tools to make sure they dig in the right way. The road should be ready in 2033.