Kakavaberd fortress (also known as Geghi Berd – ‘the village fortress’) (9-13cc) is situated in Khosrov reserve. Besides the towers and walls you can also see a medieval church within the fortress near which there are (there were) 5 huge dragon stones (worshipped by pagans in ancient times) with the depiction of bulls and birds.
Before reaching the locked entrance to the Khosrov reserve, turning to the left and passing a few hundred meters one will reach once a mighty monastery.