Nobody was aware of the statues left behind on Mount Nemrut and the ruins of the Commagene Kingdom, other than the shepherds who came to the mountain until the end of the Ottoman period. During the reconnaissance of the Anatolian-Baghdad railway line, which the Ottomans made jointly with the Germans, the German Engineer Karl Sester, who insisted on the villagers climbing Mount Nemrut, wrote his sculptures and wrote a letter to the Royal Prussian Academy of Sciences in Berlin. Following the letter, a team headed by the scientist Otto Punchtein came to Mount Nemrut. As a result of long investigations, they solved the inscription they found and found that the works belonged to the Commagene Civilization and that they were built by King Antiochos I of Kommagene. The inscription written from the mouth of Antiochus includes the secret of Mount Nemrut and the laws of Antiochos. The tomb of Antiochos, known to be in the region, could not be found.
In 1950, the first restoration work was carried out by the Turkish-German team under the direction of Professor Karl Dˆrner. Dr. It was continued by Sencer Şahin. Excavations were also carried out in the mountains of Arsameia, Samsat and the Euphrates Basin. The portable artifacts uncovered in the excavations were protected in museums and those that could not be moved were protected in the National Park Area.