Saw this on another forum. http://www.travelmole.com/news_feature.php?c=setreg®ion=2&m_id=_rs~mmT_Y!&w_id=9607&news_id=2009668
It’s my understanding from airfarewatchblog that the long layovers in Istanbul on those cheap US to Europe flights on Turkish Air don’t require a visa AND Turkish Air offers a free (and no visa required) tour of Istanbul on your layover. I think you have to arrange with Turkish Air in advance.
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