I have a large set of pictures from within or without the citadel, along with many views of the city taken from its walls.

The Wikipedia says: "The foundations of the citadel or castle were laid by the Galatians on a prominent lava outcrop (39.941°N 32.864°E), and the rest was completed by the Romans. The Byzantines and Seljuqs further made restorations and additions. The area around and inside the citadel, being the oldest part of Ankara, contains many fine examples of traditional architecture. There are also recreational areas to relax. Many restored traditional Turkish houses inside the citadel area have found new life as restaurants, serving local cuisine.

The citadel was depicted in various Turkish banknotes during 1927–1952 and 1983–1989."

I may add a few captions, but essentially you see old houses within the walls, and lots of the walls themselves, as well as the views mentioned.