Sassanian (Zoroastrian) art is also part of Armenian culture as Armenians were Zoroastrian before adopting Christianity.
This is the Jourjir Gate in Isfahan built by the Buyids who were influenced by Sassanian art and wanted to revive it to its former glory. 950-1000 AD.
Look at the Sassanian design similarities to Armenian Medieval art and rugs.
In the picture below the façade fragment is the only remains of a mosque commissioned by the Buyid vizier Ibn Abbad, a Mutazilite scholar, and built by al-Sahib Kafil-kufat Ibn Abbad. The fragment consists of a deep entrance portal framed by side walls that project the façade away from the portal datum.
The wall surfaces of the façade and the side walls are articulated with a series of receding and projecting vertical elements. The portal has a tripartite semi-dome hood with the central section left open to an arched window.
The side sections of the semi-dome form concave triangular panels of elaborate stucco Kufic script that rest on the side walls of the portal recess. These in turn hold keyhole-shaped niches on columns. The façade fragment displays a typical Buyid decorative technique, using thin bricks to form geometric patterns in relief. Era 950-1000.
