Devingrad
Veliko Tarnovo, Bulgaria
Momina krepost (Maiden’s Fortress) (Bulgarian) also called Devingrad (Bulgarian) is a medieval stronghold located on a hill with the same name in Veliko Tarnovo in northern Bulgaria. This hill was one from the three main hills when Medieval Tarnovgrad was the capital of the Second Bulgarian Empire (1185-1396 AD).
Fort data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).