One of the most interesting monuments that tell the history of Ankara is the Fortress or Citadel Hisar. The impressive design of the fortress is located on a hill and visible from almost anywhere in the city. It is surrounded by a double ring of fortified walls. Most likely, the fortress could serve as a refuge in the time of the Hittites. The outer ring of walls, which today surrounds the castle, was built in the ninth century, during the reign of Michael II. The interior walls are to the sixth century.

Internal four-storey fortress, built partly of Ankara stone and using spoliena. The stones for the construction of the wall were taken from the ruins of the ancient buildings of antiquity. The height of the towers in the inner fortress, changing between fourteen and sixteen meters. The castle today can see many of Ankara Ottoman era houses of the seventeenth century.

The Citadel had a heavy and important task - to repel the attack and defend at the border, and therefore, being a kind of "border post," always had to be in a state of military preparedness to reflect enemy.

To get to the fortress through the gate can be located under the tower, decorated with a large clock face. The thickness of the inner perimeter surrounding the fortress walls is about eight meters and a height of the walls themselves twelve meters. The highest point here is White Castle, well preserved to our times. Located here is also a small mosque, built back in the twelfth century. In the fortress you can climb the tower, located in the eastern side of the opening here and enjoy the wonderful views of the city.

Around the Citadel on the ledges of the hill lie the streets of the old city. There is still everything looks like a couple of hundred years ago. Some residents built a house close to the ramparts.

At the moment, most of the old buildings on the fortress, converted for modern needs - for example, some of them are located souvenir shops and cozy restaurants. Here, put up for sale a traditional Turkish goods, carpets and antique goods. Most of the buildings protected by the UNESCO.