![The city walls of Diyarbekir, southern Turkey, one of the great historic cities of](https://i.imgur.com/arDjJKgm.jpg)
The city walls of Diyarbekir, southern Turkey, one of the great historic cities of the Near East and a centre of Assyrian, Armenian and Kurdish civilisations. Built by Roman emperors between 367 and 375, they are the longest and widest continuous city wal
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