|The Barsian Minaret adjacent dome of mosque|
Among the oldest buildings that exist in Isfahan and have specific dates, we can mention the Barsian minaret. This minaret that is unique and circular and its tiles are stuck with a mortar of plaster, has a diameter of 5.75 m at the surface and 4.2m in the upper section and a height of about 35m. It’s unique and spiral staircase stars from the earth surface and people can enter it through a mosque which was built later on. This staircase turns counter-clockwise round a circular column with diameter of 82cm at the bottom and 72cm at the top. The illumination inside the minaret is obtained through narrow and vertical apertures around it. At the middle of the minaret's stem there is a big window facing Mecca. The body of the minaret, due to its sagging, is a little bent above the window. The lower part of the minaret is bricked in simple fashion and the upper of it are bricked ornamentally. In the upper part or the ring of the minaret, two margins with a slight protrusion, which practically make its crown, are seen.
A rectangular opening which the upper part of it is made of wood and in its two sides there are round and small columns that half part of them are inserted into the minaret wall. The upper inscription of the minaret is in the Kufic script on raised bricks and on its brick background the first 5 verses of the Taha chapter of the holy Quran is written and in the upper part of the base or the platform of the minaret in THOLTH script and on raised bricks a beautiful inscription is carved in plaster.
The manar is a cylindrical shaft with minimal decoration, consisting of a plain base and an elongated core. At the top, is a doubled collar beneath a slightly corbelled crown. Since the boles are visible, it can be concluded that the baked-brick manar was erected with the use of exterior scaffolds. The facing bricks were not revetments, but instead were bonded into the wall. The shaft diaper has a slight clockwise twist, as seen in the plan. The ceiling is warped lintel of radiating, corbelled brick courses.
The manar is attached to a mosque and slightly tapered but not highly decorated except on the top, where there is a carved tier. The decoration is very simple with no inscriptions, tiles or carved stucco, unlike the lavishly decorated Seljuk manars. The manar is described by Myron Smith as a cylindrical shaft with almost no ornamentation, a plain base, a prolonged main zone and a doubled collar under a slightly corbelled crown at the top. This baked-brick manar was built using exterior scaffolds.