The city wall of Kotor was built in the 9th century AD and was not fully built until the 19th century. It is built on the mountainside of St. John, surrounded by the entire mountainside, winding to the top of the mountain, and visitors climb 1300 steps to the highest point of the fortress, overlooking the city of Kotor and the depth of the fjord. This is a must-choice project for local tours.