Ankara Yenimahalle metro station. The Ankara Central Station is a major rail hub in Turkey. The Turkish State Railways operates passenger train service from Ankara to other major cities, such as: Istanbul, Eskişehir, Balıkesir, Kütahya, İzmir, Kayseri, Adana, Kars, Elâzığ, Malatya, Diyarbakır, Karabük, Zonguldak and Sivas. Commuter rail also runs between the stations of Sincan and Kayaş. On 13 March 2009, the new Yüksek Hızlı Tren (YHT) high-speed rail service began operation between Ankara and Eskişehir. On 23 August 2011, another YHT high-speed line commercially started its service between Ankara and Konya. On 25 July 2014, the Ankara–Istanbul high-speed line of
Altındağ, Ankara remains one of the poorer quarters of the capital. The hillside is covered with illegally built gecekondu housing, home to low-income families. Among the housing there are some municipal buildings, public housing, state housing for civil servants and lots of small workshops doing car repairs and other light mechanical work. The ancient Ankara Castle is in Altındağ and there has recently been investment in restoration work. With this architectural heritage, Altındağ is a member of the Norwich-based European Association of Historic Towns and Regions. Altındağ includes parts of the historic city of Ankara, as well as the first National Assembly