The ancient, historical fort Takht-e- Suleiman occupies an area of about 124,000 square metres and is one of Iran’s most important ancient monuments, comprising ruins dating back to the Sassanid, Ashkanian, and Moghul periods.

   Takht-e-Suleiman is in the district of Takab at an altitude of 2,400 metres and consists of a majestic building about 20m. High, erected on top of a hill, and a strong stone battlement. One enters the monument through a large gate above which traces of an inscription in Kufic style can be seen, which belongs to the Moghul period and is indicative of the reparation of the place in that period.
The present monument is believed to have originally been the site of the famous Azargashasb (Shiz) fire-altar and the birth place of Zaroaster, and its construction has been attributed to the Parthian and Sassanid sovereigns.
In the central part of the is a large pool built of stone for water storage purposes.