In 1961, with the expansion of Mashhad, Koohsangi was connected to Foozia Street and the main body of Mashhad city through a wide and wooded street called Koohsangi Street. For many years, this street was one of the best streets in Iran and its extension continued to the Mashhad railway station. Also, this place was connected to Mashhad railway station by Line 2 of Mashhad Urban Railway. Since Mashhad was the capital of Nader Afshar, the materials of his tomb were selected from hard granite stones of Koohsangi. The building of Great Krason Museum, based on the architecture of Kalat Nader Palace, has given a beautiful effect to this collection. This museum was designed by Dariush Mirfendereski in 1977, but with the occurrence of the Islamic Revolution, its construction was postponed until 2014.
