Iznik pottery
The ceramic collection of the Topkapi Palace includes over ten thousand pieces of Chinese porcelain but almost no Iznik pottery. Most of the surviving Iznik vessels are in museums outside Turkey, but examples of the city's tile production exist in numerous cities throughout Turkey, such as İstanbul, Bursa, Edirne and Adana. In Istanbul examples of Iznik tiling can be seen in mosques, tombs, libraries, and palace buildings, such as the Rüstem Pasha Mosque, the Sokollu Mehmet Pasha Mosque, the tomb of Selim II in the Hagia Sophia complex, and certain buildings of the Topkapı Palace complex such as the Circumcision room and the Baghdad Kiosk.
Topkapı Palace
The Dormitory of the Royal Pages ("Hasoda Koğuşu") houses the Imperial Portraits Collection ("Padişah Portreleri Sergi Salonu") was part of the Sultan's chambers. The painted portraits depict all the Ottoman sultans and some rare photographs of the later ones, the latter being kept in glass cases. The room is air-conditioned and the temperature regulated and monitored to protect the paintings. Since the sultans rarely appeared in public, and to respect Islamic sensitivity to artistic depictions of people, the earlier portraits are idealisations. Only since the reforms of the moderniser Mahmud II have realistic portraits of the rulers been made. An interesting feature is a large painted family tree of the Ottoman rulers. The domed chamber is supported by pillars, some of Byzantine origin since a cross is engraved on one of them.