Saint Thaddeus Monastery

The Monastery of Saint Thaddeus The "Holy Tadeosi Cathedral " is an ancient Armenian monastery in the mountainous area of West Iran, in Iranian West Azerbaijan. It is believed to be one of the oldest church buildings in the world.

Also known as Kare Kilisa, this historic site is located approximately 20 kilometers from the town of Chaldiran in Iran, in the region historically referred to as Ancient Armenia in the East. The monastery and its distinctive Armenian conical roofs are visible from long distances.

The Monastery is site of the Pilgrimage of St. Thaddeus which in 2020 was added by UNESCO to its list of Intangible Cultural Heritage.