Istanbul–Ankara railway Istanbul–Ankara railway The Istanbul–Ankara railway () is a long electrified railway in Turkey. The line connects Turkey's largest city, Istanbul, to the capital and second largest city, Ankara; making it one the busiest railways in the country in terms of passenger and freight rail traffic. The railway runs parallel to the Ankara-Istanbul high-speed railway and in several sections, the railway hosts YHT high-speed trains. The line begins at Haydarpaşa Terminal in Istanbul and ends at Ankara railway station in Ankara. Before the opening of the Ankara-Istanbul high-speed railway in 2009, the Istanbul–Ankara railway was the busiest line in Turkey as
Ankara University Observatory Ankara University Observatory The Ankara University Observatory (AUG) (), is a ground-based astronomical observatory operated by the Astronomy and Space Sciences Department at Ankara University's Faculty of Science. Established in 1959 by Dutch astronomer Egbert Adriaan Kreiken in Ahlatlıbel, Ankara. Currently, it consists of nine optical telescopes and a radio telescope, which is currently taken out of service. Old instruments are displayed in a museum at the observatory. Ankara University's Faculty of Science decided in 1954 to establish an observatory to begin with astronomical studies. Ahlatlıbel in Gölbaşı, Ankara was chosen as the ideal site, a location with dark skies