[JoeFromSidney]

I was a visiting professor at Marmara University in Istanbul, 1998-1999. I took several guided tours around the country in my off time. One visit was to an ancient synagogue. It's now a tourist attraction, and maintained in good shape. However, so far as I could determine, it has no current congregation. It's simply a historical relic.

[Texas Fossil]

You might find these interesting:

‘Where Are Your Jews?’ Watchdog Rebukes Arab States Accusing Israel of Apartheid During UN Human Rights Council Meeting

https://www.algemeiner.com/2017/03/22/where-are-your-jews-watchdog-rebukes-arab-states-accusing-israel-of-apartheid-during-un-human-rights-council-meeting/

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Why Turkey’s Jewish Population Continues to Decline

https://www.algemeiner.com/2016/10/30/why-turkeys-jewish-population-continues-to-decline/