 The girth of transition to the 20-hedral base of the ceiling which probably consisted of six intersecting arches is composed of groove-divided triangular slabs, vertical and inclined.Outside of these is a small Surb Astvatsatsin (Holy Mother of God) church attributed to Abbot Hovhannes in 1198 in memory of his parents and brothers, with sculpted a portal.The church is a miniature building, which belongs to the type of the four-apse centric round monuments of the 10th to 13th centuries such as the church of St. Gregory in Sanahin.