There is no shortage of mosques in Turkey. Turning Hagia Sophia into a mosque was just a way for Erdo to thumb his nose at the Christian world. I don't think he gained a thing from it. Also, as has been pointed by various scholars, Hagia Sophia is and has always been a Christian cathedral. You can call it anything you want, but for those who kneeled there with Erdogan, were kneeling before Jesus Christ and the Virgin Mary. Let that mental image matriculate throughout Turkey.