Perili Köşk
Perili Köşk ( originally known as the Yusuf Ziya Pasha Mansion and currently housing the headquarters of Borusan Holding and the Borusan Contemporary art museum ) is a historical monument at the Rumelihisarı neighbourhood of the Sarıyer district in Istanbul , Turkey . 
<triplet> Borusan Holding <subj> Istanbul <obj> headquarters location <triplet> Rumelihisarı <subj> Istanbul <obj> located in the administrative territorial entity <subj> Turkey <obj> country <triplet> Sarıyer <subj> Istanbul <obj> located in the administrative territorial entity <triplet> Istanbul <subj> Turkey <obj> country