Yah I disappointed the original vanilla game screwed the Byzantine churches, Their designs are generally modeled off the Hagia Sophia with a dome in a box design.

To be there waisnt any "religious" wonders too. Constantinople Hagia Sophia *sanctum of holy wisdom* would grant religious bonuses and extra income from pilgrimages. Jerusalem would have the dome of Rock , Rome would have St Peters square, Spiraling minaret in Syria.

I wish it were possible to convert units, A Christian general could become a Muslim and vice versa.