Question: The Akmerkez mall and Haseki Sultan Complex of mosques are landmarks in which ancient city?
Sentence (from "Haseki Sultan Complex"): The Haseki Sultan Complex (also Hürrem Sultan Complex) (Turkish: "Haseki Hürrem Sultan Külliyesi" ) is a 16th-century Ottoman mosque complex in the Fatih district of Istanbul, Turkey.
Relevant evidence: Yes