4. Karakoram Highway, Pakistan
Named the “Friendship Highway” by the governments who built it. The Karakoram Highway is the highest paved international road in the world. It connects China and Pakistan across the Karakoram mountain range, through the Khunjerab Pass, at an elevation of 4,693 metres. It’s prone to landslides and floods and to make matters worse, the road is unpaved in Pakistan. But it is still a tourist attraction, passing through some spectacular gorges along the old Silk Road.