The ‘‘Zarni-Parni‘‘ cave castle complex is located in a picturesque forest canyon with a delightful panorama view of the Kayan fortress not far from the village of Haghpat renowned for its unique monastery complex in the Province of Lori. 
The historical complex consists of the ‘’Zarni er’’ and‘’Parni er’’ castles embodying the strong will and persistence of the participants of the Armenian national liberation struggle, as well as the ‘’Tsak er’’ cave.  According to some historical records the XI-XIIc. great scholar and philosopher Hovhannes Imastaser lived and worked in this cave.
These historical monuments had been buried under thick layers of soil and dense forest vegetation. After restoring the road leading to the cave, the area was cleaned up and stone steps were carved up to the ‘’Parni er’’ castle.
The completely restored area was made into a historical museum that features hundreds of unique exhibits, agricultural tools and equipment, including wooden ploughs, yokes, household items, kitchenware, pitchers, large wine jars and a great number of other articles representing the culture and daily life of the local people.