This is the Muradiye mosque, by the greatest Turkish architect, Sinan. It is one of his last works, from 1582-1585, who built it for Murat III.

On the picture: The western facade of the Muradiye Medresesi (Highschool), lying east of the mosque. Behind the school there is a third large building, an imaret (soup kitchen for the poor). They form (together with a row of shops) the Muradiye Külliyesi.

Külliye, deriving from the Arabic word "kull" (meaning the whole, all) is a term which designates a complex of buildings, centered around a mosque and managed within a single institution, often based on a vakıf (foundation). Additional to the mosque, it can be composed of a medrese (school), a darüşşifa (hospital), kitchens for the poor, bakery, hamam, library, arasta (shops), caravanserai and other buildings for various benevolent services for the community. Often the türbe of the initiator will be present too.
The tradition of külliye is particularly marked in Turkish architecture, particularly Ottoman Empire

Correspondent: J.M.Criel, Antwerpen.
Sources: ‘Islamic Architecture: Ottoman Turkey’ (Godfrey Goodwin) – London 1977 , Wikipedia
& Website of ‘Manisa Il Kültür ve Turizm Müdürlüğü’ .