The name of this Turkish city translates to 'Opium Black Fortress

Phytolith evidence for the pastoral origins of multi-cropping in Mesopotamia (ancient Iraq)

Afyonkarahisar – Old City and the Black Castle

The Black Fortress of Opium

Why is Kitaigorod in Moscow named as such? Was it a Chinatown? It doesn't look like Chinatown at all. - Quora

The 3rd gate of the fortress hi-res stock photography and images - Alamy

Illegal drug trade in Turkey - Wikipedia

Best Things to Do in Cappadocia, Turkey When Visiting - Thrillist

Best Castles in Turkey - Europe's Best Destinations

The Project Gutenberg eBook of An Island Hell: A Soviet Prison in the Far North by S. A. MALSAGOFF and translated by F. H. LYON

Wutai - TV Tropes

Ottoman Empire – Travel guide at Wikivoyage

Under Jerusalem • Andrew Lawler