The ancient city of Kotor is one of the most complete ancient cities on the Adriatic coast, and has been included in the UNESCO World Heritage List. There are also a large number of places of interest in the ancient city, such as the St. Triffin Cathedral built in 1166 in the old city and the ancient city walls that stretched 4.5 kilometers in the city. The ancient city of Kotor is one of the most famous tourist destinations of Kotor.