The Armenian Monastic Ensembles of Iran, in the north-west of the country, consists of three monastic ensembles of the Armenian Christian faith: St Thaddeus and St Stepanos and the Chapel of Dzordzor. These edifices – the oldest of which, St Thaddeus, dates back to the 7th century – are examples of outstanding universal value of the Armenian architectural and decorative traditions. They bear testimony to very important interchanges with the other regional cultures, in particular the Byzantine, Orthodox and Persian.
Situated on the south-eastern fringe of the main zone of the Armenian cultural space, the monasteries constituted a major center for the dissemination of that culture in the region. They are the last regional remains of this culture that are still in a satisfactory state of integrity and authenticity. Furthermore, as places of pilgrimage, the monastic ensembles are living witnesses of Armenian religious traditions through the centuries.
The Armenian monasteries of Iran have borne continuous testimony, since the origins of Christianity and certainly since the 7th century, to Armenian culture in its relations and contact with the Persian and later the Iranian civilizations. They bear testimony to a very large and refined panorama of architectural and decorative content associated with Armenian culture, in interaction with other regional cultures: Byzantine, Orthodox, Assyrian, Persian and Muslim. Armenian Monastic Ensembles was inscribed on the world heritage list of UNESCO in 2008.