Istanbul

Istanbul historically known as Byzantium and Constantinople, is the largest city of Turkey. Istanbul has 13.5 million people living in it as of 2012. Istanbul is a megacity; the cultural, economic, and financial center of Turkey. Located in the northwest of the country, it lies on the Bosphorus Strait and encompasses the natural harbour known as the Golden Horn. Istanbul was named a joint Europen Capital of Culture for 2010 and the European of Sports for 2012. The historic areas of the city were added to the UNESCO World Heritage List in 1985.

In Arthur
Arthur's pen pal Adil Akyuz, his family, and his friend Andhur live in Istanbul. It appeared in Dear Adil, Is That Kosher?, and The Long Road Home.