I think you'd probably be fine, actually. There are over 20,000 Jews in Istanbul. But yeah, I'm not saying these countries are perfect but they're all worlds better than the Christian countries I listed on just about every metric. I wouldn't want to walk down a street in DR Congo regardless of whether I'm wearing a yarmulke or not.
Actually, not so much:
On November 15, 2003, two trucks carrying bombs slammed into the Bet Israel and Neve Shalom synagogues in Istanbul, Turkey and exploded. The explosions devastated the synagogues and killed twenty-seven people, most of them Turkish Muslims,[1] and injured more than 300 others. Six Jews were among the dead.[1][2][3] An Islamic militant group, IBDA-C, claimed responsibility for the blasts, but Turkish government officials dismissed these claims, pointing out that this minor group did not have enough resources to carry out such an intricately planned and expensive attack.
http://en.wikipedia.org/wiki/2003_Istanbul_bombings
And before you try the quick and easy reply that I’m not likely to be involved, please be advised that my wife’s Jewish office in Seattle was attacked by a jihadi, with a co-worker killed and several others injured.