They are usually huge. I was very surprise because in my home country, Portugal, we used to believe we had a lot of malls (we do) but Istanbul is just unbelievable.
Back to Istanbul, in Levent (near the financial district) you can have three right next to each other. On one of my stays there my hotel was actually around the corner from one of this malls.
I also have some difficulty with the idea that people are heading out to the streets, risking life and limb, in multiple cities across Turkey just because of a mall in Istanbul.
The notion that we can figure this out just by hitting google maps seems obviously wrong.
* The original claim on the blog
* Some research a poster here helpfully did using Google maps and web searches to verify
* Stories from multiple people who have visited Istanbul in person and can compare to other european cities
... you are still banging the drum of "You can't answer a question just by checking the internet!"
I wonder: what kind of evidence would get you to the point where you might believe such a claim?
https://maps.google.com/maps?q=shopping+mall&hl=en&l...
These results seem pretty lousy and not particularly different from those from Istanbul.