An archaeological monument of the 7th and 8th centuries AD.
Called Adamli Kala.
I do not recommend visiting this place. There are only a few distinct parts of the inner fortress walls but the outer fortress walls are completely indistinguishable. They are barely mounds of dirt now.
The good thing is that it is next to the main road going to many other fortresses, so if you have time be sure to still stop though!