Pianist Fazil Say is an internationally acclaimed Turkish artist. He could face a sentence of 18 months in prison on charges of insulting Muslim religious values on Twitter. Critics call him a "traitor to the nation". Arne Lichtenberg reportsMore
The Hagia Sophia in Istanbul has become a bone of contention. Since it was secularised in 1935, it has been a museum. Now Turkish nationalists want to turn it back into a mosque - while the Patriarch of Constantinople wants to use it as a church again. A photo essay by Klaus Dahmann.