Aydın (/ˈaɪdɪn/ EYE-din; Turkish: [ˈajdɯn]; formerly named Güzelhisar), Ancient and Modern Greek Τράλλεις /Tralleis/, is a city in and the seat of Aydın Province in Turkey's Aegean Region. The city is located at the heart of the lower valley of Büyük Menderes River (ancient Meander River) at a commanding position for the region extending from the uplands of the valley down to the seacoast. Its population was 207,554 in 2014. Aydın city is located along a region which was famous for its fertility and productivity since ancient times. Figs remain the province's best-known crop, although other agricultural products are also grown intensively and the city has some light industry.