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.
Palace
After the establishment of the Republic of Turkey, Topkapı Palace was transformed into a museum on April 3, 1924. It was also the first museum of the Republic of Turkey. Topkapı Palace Museum covers approximately 400,000 square meters at the present day. Topkapı Palace is separated from the city on the land-side by the Imperial Walls, which were constructed by Mehmed the Conqueror. It is separated from the city on the sea-side by the Byzantine Walls. Topkapı Palace is one of the largest palace-museums with its architectural structures, collections, and approximately 300,000 archive papers.