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 altitude of 4,693 m/15,397 ft. as confirmed by both SRTM and multiple GPS readings. It connects China's Xinjiang region with Pakistan's Northern Areas and also serves as a popular tourist attraction. It is also referred to as National Highway 35 or N35. Due to its high elevation and the difficult conditions in which it was constructed, it is also referred to as the "Ninth Wonder of the World."