Khyber Pass
The Khyber Pass is a mountain pass near the boundary between Afghanistan and Pakistan lying at 1,070 m (3,510 ft) above sea level. The road through the pass runs through the forbidding Hindu Kush mountains. The pass has always been a vulnerable point militarily, used by Alexander the Great of Greece to invade India and for the movement of military forces led by Genghis Khan of Mongolia, Darius the Great of Persia, and many others. The pass also was always an important trade route between Central and South Asia and lay along the Silk Road, the ancient trade route linking China with the West.
One of the few paved roads in Afghanistan travels through the pass, from the national capital, Kabul, through Jalalabad, the capital of Nangarhar Province, and one of Afghanistan's largest cities, to the border with Pakistan, at Towr Kham. The road then continues to Peshawar, Pakistan.