Karatepe-Aslantaş Open-Air Museum

The Karatepe-Aslantas Open-Air Museum is an archaeological museum in Osmaniye Province, Turkey, situated within the Karatepe-Aslantas National Park. The site preserves the ruins of Azatiwadaya, an eighth-century BC Neo-Hittite fortress founded by King Azatiwada of Quwe. Its name derives from Karatepe, meaning black hill, and Aslantas, referring to the lion stone sculptures guarding the fortress gates. The museum is of major historical significance primarily because it houses the Karatepe Bilingual, an inscription featuring the same text in the Phoenician alphabet and Hieroglyphic Luwian, which provided the essential key to deciphering Anatolian hieroglyphs.

The ancient fortress was built along the Akyol, a historic caravan trail connecting Cilicia with Central Anatolia, constructed to defend against northern invaders. The kingdom was later conquered by the Assyrian Empire, either around 720 to 725 BC or in 680 BC. The site was accidentally discovered by local sheepmen from Saimbeyli, who notified the village school teacher Ekrem Kuscu, who in turn informed Naci Kum, the director of the Adana Museum. The government commissioned Helmuth Theodor Bossert, a German archaeology professor at Istanbul University, to lead excavations beginning in the spring of 1946. Turkish archaeologist Halet Cambel played a central role in the project, later joined by Bahadir Alkim, with the initial excavations completed in 1952. Through Cambel's advocacy, the archaeological site and its surroundings were designated the Karatepe-Aslantas National Park on September 28, 1958, effectively establishing the open-air museum.

The museum's collection consists of in situ architectural remains, monumental stone sculptures, and basalt reliefs from the Neo-Hittite period. The majority of artifacts, including large structural elements and carved stone panels, have been left undisturbed in their original positions. Only smaller portable items have been relocated to an indoor museum building for exhibition. The reliefs depict the faith, rituals, and daily life of the era, serving as visual records of royal processions, offerings to deities, chariot rides, and banquets. The artwork exhibits a synthesis of cultural influences, blending traditional Hittite motifs with Assyrian and local Anatolian artistic traditions, reflecting the region's status as a cultural crossroads.

The most historically significant holdings are the two Karatepe Bilingual inscriptions, located at the southwestern and northeastern gates. By pairing Phoenician text with Hieroglyphic Luwian, these inscriptions enabled scholars to decrypt the Luwian script, which dates back to the 20th century BC. The southwestern gate features two lion statues, basalt reliefs in flanking chambers, a statue of the Ancient Egyptian dwarf deity Bes, and a 3 m tall statue of the Phoenician thunder god Baal. The northeastern gate is guarded by two sphinx statues and contains additional reliefs alongside the second bilingual inscription. Atop the hill, the collection includes grain wells and the burnt ruins of two buildings believed to be palaces.

The museum encompasses the remains of a double-walled fortress stretching 376 m south to north and 196 m east to west. The unmortared stone walls, filled with rubble and soil, stand 4 to 6 m high and are 2 to 4 m thick. The fortification features 34 rectangular bastions spaced 18 to 20 m apart, of which 28 have been identified, with the east-west walls restored to their original state. The site occupies a wooded hilltop peninsula surrounded on three sides by the Aslantas Dam reservoir, overlooking the Andirin Plain. The museum is reached via a 1,200 m long stone-paved trail from the national park entrance, leading to the area locally known as the Hittite Peninsula.

The museum is located north of the 638 m high Karatepe at Kizyusuflu village in the Kadirli district of Osmaniye Province. It is situated 22 km from Kadirli and 30 km from Osmaniye, accessible via provincial roads passing through the national park. The nearest airport is Adana Sakirpasa Airport, 125 km away. Before touring the open-air grounds, visitors can view a multilingual visual presentation about Karatepe. The surrounding national park offers recreational activities such as hiking, picnicking, and camping in designated areas, with overnight accommodation available in the nearby towns of Kadirli and Osmaniye.