Hattusa (URUḪa-at-tu-ša ; Ḫattuša) was the capital of the Hittite Empire. It was located near the modern-day village formerly known as Boğazköy, now named Boğazkale , a district center in Çorum Province, Turkey, and was set in a loop of the Kızıl River (Marashantiya in Hittite sources and Halys in Antiquity) in central Anatolia, about 145 km (90 miles) north-east of Ankara.