In the third century B.C., the Galatian settlement in Cankiri was called Gangrea, a name which evolved into Kangri. The ruins of an 11th century fortress overlook the city. In town the Ulu Mosque, built by Turkey's greatest architect, Sinan, in the 16th century, recalls the years of Ottoman culture. Tag Mescit, a medieval hospital built in 1235, lies just outside the city. North of Cankiri is the beautiful Ilgaz National Park and Ski Center.