The Troyan Monastery is the third largest and one of the most famous monasteries in Bulgaria. It is a remarkable cultural monument with its architecture, carvings and amazing wall paintings, work by Zachary Zograf. In the monastery church "St. Mother of God" is kept and the most famous miraculous icon "Holy Mother of God Troeruchitsa".
The temple festival of the monastery is on 15 August, when the Orthodox Church honors the Dormition of St. Mother of God. Traditionally, the festive services in the monastery on this day are headed by the Bulgarian Patriarch.