The Ulu Cami was the first large congregational mosque of the Ottomans. It measures 56 x 68 m over all (outside measures) and some 50 x 62 m inside. Twelve heavy piers carry the twenty middle-sized domes (diameter: almost 9 m).

Correspondent: J.M.Criel, Antwerpen.
Source: ‘Vakıf Abideler ve eski Eserler III’ - Vakıflar Genel Müdürlüğü, Ankara 1983