Kafir-kala ("Fortress of the infidels") is an ancient fortress in the Vakhsh valley in Tajikistan.
[1] It consists in a rectangular town surrounded by a wall with towers (360x360 meters), surrounded by a large ditch, and has one citadel (360x360 meters) in one corner, also surrounded by a wall.
The citadel (70x70 meters) contained the palace of the rulers.
[1] A Buddhist temple was found in the palace complex of the fortress as well as a Buddhist Vihara with Buddhist paintings, belonging to the "Tokharistan school of art".
[1][2] Inscriptions with apparently Buddhist content have also been found.