The Karakoram Highway (KKH) 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 (15,397 ft). It connects China's Xinjiang region with Pakistan's Gilgit–Baltistan and Khyber Pakhtunkhwa regions and serves as a popular tourist attraction. Due to its high elevation and the difficult conditions in which it was constructed, it is sometimes referred to as the "Eighth Wonder of the World." The Karakoram Highway is known informally as the KKH and — within Pakistan — officially as the N-35; within China, officially as China National Highway 314 (G314).
In recent years the highway has become an adventure tourism destination. It was ranked as the third best tourist destination in Pakistan by The Guardian. The road has given mountaineers and cyclists easier access to the many high mountains, glaciers, and lakes in the area. The highway provides access to Gilgit and Skardu from Islamabad by road. These are the two major hubs for mountaineering expeditions in the Gilgit–Baltistan region of Pakistan-administered Kashmir. The Gilgit–Baltistan Administration of Pakistan and the Xinjiang Administration of China have signed an agreement to issue border passes to their permanent residents. This pass is valid for a calendar year and is used to travel through Khunjerab Pass only.