The world’s longest highway tunnel among those situated at a height of 10000 feet above the sea level. The Rohtang Pass, cuddled in the crest of the world’s largest mountain, The Himalayas, is the tallest mountain pass, one can travel through upon this Earth. Nestled among the Pir Panchal range of mountains, the Rohtang pass sits at an incredible height of 13000 feet above the sea level, connecting the beautiful hills of Manali and the valleys of Lahaul Spiti. However, every year, during those six months of heavy snow, the Rohtang pass has to be shut down for all forms of transportation. The tunnel, which forms part of the Manali-Ladakh highway, has been constructed by excavating a 2000 metre high snow clad hill among the Rohtang mountains. It runs an amazing distance of 9.02 kilometers at a width of 10.56 meters, encompassing a two-lane road which is 8 meters wide. The tunnel has also been equipped with an emergency underpass which is 2.25 meter high and 3.6 meter wide.