Çukurbostan is a quarter of the European side of
Istanbul located in the north side of the
Fatih district (the
walled city). Although it is difficult to define exactly its boundary, Çukurbostan lies between the neighbourhoods of
Balat and
Atikali. In the quarter are located the
Yavuz Selim Mosque and the
ByzantineCistern of Aspar. The cistern was used in the
Ottoman period as a vegetable garden, and its name Çukurbostan ("sunken garden") gave the name to the quarter.