By now I have visited many shopping malls (alış veriş merkeziler), some of them shabby, some of them state of the art. The first of the latter category was the Armada building in Ankara. I showed similar centres from Diyarbakir and Bursa, and some other smaller ones all over the country.
I will here group at least two malls in Istanbul, beginning with one in the Şişli region. Another one is in the Etiler district. And I hope to take some others on a later visit. So please inform me if you know a good one.