The Lærdal Tunnel is a road tunnel in Norway, stretching approximately 24.5 miles (39.7 kilometers). It connects the towns of Lærdal and Aurland in the Sogn og Fjordane region. Opened in 2000, it is one of the longest road tunnels in the world, designed to improve transportation and accessibility in the area. The tunnel features several unique design elements, including large caverns that provide rest areas and scenic viewpoints for travelers. It was constructed to enhance safety and reduce travel time, making it a vital infrastructure project for the region's economy and tourism.