Early Quranic manuscripts
The Topkapi manuscript is an early manuscript of the Quran dated to the early 8th century. This manuscript is kept in the Topkapi Palace Museum, Istanbul, Turkey. It was wrongly attributed to Uthman Ibn Affan (d. 656), but judging from its illumination, the Topkapi manuscript does not date from the period (mid 7th century) when the copies of the Caliph Uthman were written.
Topkapı Palace
The library is a beautiful example of Ottoman architecture of the 18th century. The exterior of the building is faced with marble. The library has the form of a Greek cross with a domed central hall and three rectangular bays. The fourth arm of the cross consists of the porch, which can be approached by a flight of stairs on either side. Beneath the central arch of the portico is an elaborate drinking fountain with niches on each side. The building is set on a low basement to protect the precious books of the library against moisture.