The largest mosque in Ankara and one of the oldest Muslim building in the city is the Kocatepe mosque. It was built in 1987 on a hill close to Kizilay square. The construction of the complex was carried out according to the drawings of an architect-planner Husrev Talana, and took about 19 years (1964-1986). This new symbol of Islam built on the model of the Sultan mosques of Sinan. Architectural decoration of the mosque was also produced in the classic Ottoman style.

The area of the mosque is 4288 square meters (64×67), height (main dome) 48, 5 meters, the diameter of the dome 25, 5 meters. The huge size dome and four tall minarets, directed upwards, the height of each of which is 88 meters, visible from afar. They can be a good landmark while walking on the South of the center of Ankara. Domes and minarets decorated with Golden crescents.

Once it is clear that the construction of the mosque spared no money: inside the mosque are decorated with stained glass and gold records, a huge crystal chandeliers, decorative tile, and marble. The center is a model of the mosque Mescid-I Nebevi, located in the Medina. Model gave in 1993 the king of Saudi Arabia Abdulaziz to Turkish President Demirel.

The architectural complex Kocatepe consists of the mosque, library, conference center and covered Parking. In his underground premises available tea and one of the largest in the city supermarkets.