 The church is situated in the middle of the fortress'territory along the longitudinal axis. It belongs to the domed basilica type of churches, where the bearings join with the side-chapels of the apse. Two pairs of arches divided the longitudinal stretched prayer hall into three naves, the central one of which (with double side-chapels) on the eastern side ends with low staged, half-rounded apse and the side-chapels end with sacristies. They are characterized with stylish iconography, richness of theme and variety of different colors (where blue is dominant). The vertical axis of the building was crowned by a massive dome. The pointed dome with the cylindrical drum has not survived. It was damaged during Tamerlane's invasion and completely demolished in 1784 when the Avar Omar Khan invaded the Transcaucasus from Dagestan. In the 19th century, Viceroy of the Caucasus, Prince Mikhail Vorontsov built a semi-spherical wooden dome covered with iron sheets in place of the original dome. The dome was renovated during Soviet years.
