Diyarbakir:
Diyarbakir is the largest city in southeastern Turkey. Situated on the banks of the River Tigris, it is the administrative capital of the Diyarbakir Province with a population of almost 1.5 million. With a population of about 600,000, it is the second largest city in Turkey's South-eastern Anatolia region, after Gaziantep. Within Turkey, Diyarbakir is famed for its culture, folklore, and watermelons. Today, the population of Diyarbakir is made up predominantly of Kurdish people, and the city is sometimes described as the "unofficial capital" of Turkish Kurdistan.
Diyarbakir is surrounded by an almost intact, dramatic set of high walls of black basalt forming a 5.5 km (3.4 mi) circle around the old city. There are four gates into the old city and 82 watch-towers on the walls, which were built in antiquity, restored and extended by the Roman emperor Constantius in 349.
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