Title: Krepostta Kolkali︠a︡nski Urvich u kŭsnosrednovekovnii︠a︡t manastir v nei︠a︡
Subjects: Fortification, Monasteries, Excavations (Archaeology), Antiquities, Kolkali︠a︡nski Urvich (Bulgaria)
Places: Bulgaria, Sofia (Oblast), Sofia (Bulgaria : Oblast)