Hattusha: the Hittite Capital is located in Boğazkale District of Çorum Province, in a typical landscape of the Northern Central Anatolian Mountain Region. It lies at the south end of the Budaközü Plain, on a slope rising approximately 300 m above the valley, and is divided by the Kızlarkayası creek into the lower city in the north and the upper city in the south.
The property consists of the Hittite city area, the rock sanctuary of Yazılıkaya on the north, the ruins of Kayalı Boğaz on the east and the İbikçam Forest on the south. A monumental enclosure wall of more than 8 km in length surrounds the whole city. There are remains of older walls around the lower city and section walls dividing the large city area in separate districts. The ruins of the upper city’s fortification form a double wall with more than a hundred towers and, as far as is known today, five gateways: two in the west, the Lion’s Gate in the south-west, the King’s Gate in the south-east and a procession gate, the Sphinx Gate in the south of the city. The latter is located on top of a high artificial bastion with stone-plastered slopes, with two staircases leading to the gateway at the top and an arched stone tunnel running underneath. The impressive ruins of fortifications, placed on rocky peaks in the centre of the Upper City, bear witness to the complexity of Hittite rock masonry, and the longest known Hittite hieroglyphic inscription from the Hittite Empire can be found in the Upper City at Nişantepe.
The best-preserved ruin of a Hittite Temple from the 13th century B.C., known as Great Temple, is located in the Lower City. Other temples of similar date and shape, albeit generally smaller, are situated in the Upper City, which mostly consisted of a temple city for the gods and goddesses of the Hittite and Hurrian pantheon. The remains of a densely inhabited city district were unearthed in the Lower City, where their foundations and arrangement can still be seen in the area north from Great Temple.
The famous rock sanctuary of Yazılıkaya, which is an open-air temple with two natural chambers cut into the bedrock, lies 2 km northeast of the capital, on a slope of a mountain barrier. The walls of the rock chambers are covered with the richest and most striking samples of Hittite relief art, featuring gods and goddesses and the figures of the Great King Tuthaliya IV. Kayalı Boğaz, first mentioned in cuneiform inscriptions, is a large fortified settlement located 1.5 km east of the King’s Gate. It may have served as one of the outposts and strongholds, located in the countryside to watch and control the main roads leading to the city. The İbikçam Forest represents one of the last remaining examples of a dense forest covering the mountains south of the capital in Hittite times.
Hattusha is an archaeological site remarkable for its urban organization, the types of construction and rich ornamentation that have been preserved and for the ensemble of rock art.