Karatepe-Aslantaş Open-Air Museum () is an open-air museum in Osmaniye Province, Turkey. Karatepe ("black hill") is the location while Aslantaş ("lion stone") refers to the lion figure on stone sculptures. The site is situated inside a national park with the same name. Location The museum is located north of the -high Karatepe at Kızyusuflu village in Kadirli district of Osmaniye Province. Its distance to Kadirli is and to Osmaniye . It is situated to the west of Aslantaş Dam resorvoir, and is part of the Karatepe-Aslantaş National Park. The location is named Karatepe-Aslantaş to distinguish it from other places with the name Aslantaş, which are named by the locals after lion stone statues. The museum ground is located on a hill in a woodland landscape overlooking the Andırın Plain, and is a peninsula surrounded on three sides by the Aslantaş Dam reservoir. History Karatepe is on the historic caravan trail, called Akyol, ("white road") which connects Cilicia with Central Anatolia over Andırın-Göksün. The route was used by Hittites, Crusaders and recently by the Yörüks. The site contains the remains of an ancient fortress dating back to the 8th century BC. Originally named Azatiwadaya, the walled settlement was founded by Azatiwada, the king of Quwê, a Neo-Hittite kingdom. It was built for defense against invaders from the north. The fortification and other territory areas of the kingdom were conquered by the Assyrian Empire from the east either in 720–725 BC term or in 680 BC. The site was accidentally discovered by sheepmen from Saimbeyli. They informed Ekrem Kuşçu, the village school teacher, who in turn notified Naci Kum, the director of Adana Museum. The government commissioned Helmuth Theodor Bossert (1889–1961), German professor of archaeology at Istanbul University, to conduct excavations, which began in Spring 1946. Turkish female archaeologist Halet Çambel (1916–2014) was a key figure in the archaeologists team. Bahadır Alkım (1915–1981) joined later the excavations, which were accomplished in 1952. Upon Çambel's efforts, the archaeological site and its close surroundings were established as the Karatepe-Aslantaş National Park with effect of September 28, 1958. Open-air museum The ruined inner and outer walls of the fortress are high and thick. The inside of the double stone walls without mortar were filled with rubble and soil. The fortification stretches over in the south-north direction and in the east-west direction. The wall construction is fortified at distance with 34 rectangular bastions in total, of