karakorum highway

Karakoram Highway (KKH) :
The Karakoram Highway (KKH) is the highest paved international road in the world.[1] It connects China and Pakistan across the Karakoram mountain range, through the Khunjerab Pass, located at 36°51′00″N 75°25′40″E, at an elevation of 4,693 metres (15,397 ft).[2][3] Connecting China's Xinjiang region with Gilgit–Baltistan region of Pakistan, the road is a popular tourist attraction. Due to its high elevation and the difficult conditions in which it was constructed, it is referred to as the Eighth Wonder of the World.
source :  Wikipedia 
http://en.wikipedia.org/wiki/Karakoram_Highway