Built by Roman Emperor Tiberius Caesar Augustus, the ancient town had succumbed under the waters of Seyhan Dam in 1955.
The ancient remains were only discovered during the construction of Seyhan Dam, Osmaniye Korkut Ata University archaeologist Dr. Fatih Erhan said, adding that the ruins date back to the first century.
Steps of the city's ancient amphitheater were revealed as a result in the drop in water levels, Erhan said, noting that this is an indicator to the grandeur of the town's structures.
The city was first written about in a 1956 article but the remains were still covered up by the dam, Erhan added.