HARUN'S PRISON
Locally called Zindan-e Harun, this two- story historical structure 12 km from the Tehran-Mashhad road at the foot of Mesgar Abad mountains, consists of a rectangular construction built with rough- hewn dark-colored stones and plaster mortar, and has a brick ceiling. Originally, it was 9 meters high. There is an opening upon its southern wall from which you can go inside the building. Its construction has been attributed to the Buvayhids ( lOth century AD).