Ciragan Palace br br Çırağan Palace (Turkish: Çırağan Sarayı), a former Ottoman palace, is now a five-star hotel in the Kempinski Hotels chain. It is located on the European shore of the Bosporus, between Beşiktaş and Ortaköy in Istanbul, Turkey. br br The Sultan’s Suite, billed at US$35'419,68 per night, is ranked number 14 on World's 15 most expensive hotel suites compiled by CNN Go in 2012.