The Third Courtyard of Topkapi palace occupies an area of 90m x 90m . At this courtyard , you can notice Kashane Gate which is the exit of Harem to the courtyard . At the right side , there are Akagalar Kokasu and Enderun (the building that looks like a palace university with military administratives) structures . Across the opening gate of the courtyard , there is Audience Chamber which used to be the place where the sultan welcomes foreign ambassadors and senior officials . This structure is also notable for its roof that has wide fringes carried on marble columns . On both sides of the entrance gate of the courtyard , there is tiles belonging to 16th century and on the right side , there is a notable fountain . Library of Ahmet III which goes back to the 18th century and was built from marble , can be seen in the middle of the courtyard , behind Audience Chamber . This library houses about 3 , 500 of Turkish , Arabic and Persian written works .
On the right wing of the Third Courtyard , there is Seferli Kogasu (or Dormitory of the Expeditionary) where different clothes and fabrics of the sultan and the royal family are exhibited . The structure of the Imperial Treasury or Fatih Chalet is one of the most important structures in
the palace and is located adjacent to Seferli Kogasu . The structure consists of three rooms aligned on the right of Enderun courtyards as well as a fourth one located towards the left . There is a terrace located at the intersection between the third and fourth room from where you can see Bospshorus and Marmara sea . At the four rooms of the Imperial Treasury , there are many jewelry works , thrones , arrows and arcs exhibited , many of which are the works of Jewelry masters who were working at the palace . (see links below the article for detailed description of what you can see inside the rooms of the Imperial Treasure building) . A marble road extends from the library of Ahmet III going west to the left wing of the courtyard leads to the Imperial Portraits Collection . Among the collection that worth seeing are portraits of the sultan during accession ceremonies or bayram ceremonies of sultan Selim III (1789-1807) and a painting made by the palace artist Konstantin Kapidagli . To the south of Imperial Portraits Collection , there is Agalar Mosque (Mosque of the Agas) which is used today as a library , while on the north , there is the Chamber of Sacred Relics (see detailed description of the Chamber of Sacred Relics in the links below this article) . Next to the Chamber of Sacred
Relics , there is the exhibition of Clock Section (Silahtar Treasury) where there are about 350 different types of clocks from different periods in exhibition , some of which were made in Turkey and others were given as presents to sultans . The third courtyard ends with the two corridors that opens to Fourth Courtyard .
