I learned the Ankara station held a museum, so I went there. Later the Wikipedia taught me: "The building was built in 1892, during the construction of the Berlin–Baghdad railway. The building was built for the management of the railroad administration as part of the Ankara railway station complex located at Ulus, Ankara. On 27 December 1919, Mustafa Kemal Atatürk went to Ankara for the first time to start the Turkish National Movement against the occupation of Turkey. He moved into the railway management building, which was one of the few state buildings in Ankara, and used it as his residence and headquarters during the Turkish War of Independence; to commemorate his stay in the building, it was converted into a historic house and railway museum on 24 December 1964."