The mihrab area, which is the southernmost room of the building.
From left to right, along the so-called ‘qibla’-wall, one sees a small ‘vaaz kürsüsü’ (= pulpit of the sermon), the ‘mihrab’ (prayer niche that indicates the direction of the Kaaba in Mecca) and the ‘minber’.
‘Minber’ and ‘vaaz kürsüsü’ are both pulpits, from where sermons are given. The difference is that the minber is obligatory for the ‘Friday sermon’, held during the most important common prayer of Islamic week. All other sermons can be held from the smaller ‘kürsü’.

Correspondent: J.M.Criel, Antwerpen.
Source: Vikipedia.