Trakhun
The Trakhun (Pashto, Balochi) or Trakhu is a historical, archaeological site with high-walled fortress atop a 30 m high triangular rock formation over 100 m on each side, located in the center of the Rud-i Biyaban in Nimroz Province of the Sistan region. By legends and local tradition, Tarakhun is credited to be the birthplace of Rustam.
Monument data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).