Zarni-Parni cave-fortress was built in the 12th century, but for a long time the road to the cave was difficult to reach. Armenian bibliographer Hovhannes Imastaser was hermiting in the cave, it was a safe place for Armenian chroniclers. The monument consists of “Zarni er/ It was Zarni”, “Parni er/ It was Parni”, “Tsak er/ It was a hole” caves. Later, thanks to the efforts of Alaverdi resident Ruben Mesrobyan, the cave was renovated and now is presentable.