Hıdiv Kasrı is a full-blooded Art Nouveau summer palace on a wooded crest above Çubuklu, in Beykoz, softened with Italian Renaissance and Ottoman touches. A tall square tower rises over the trees, a landmark you can pick out from the far European shore. Step inside and the house turns theatrical: a marble fountain stands at the centre of the hall, ringed by columns under a dome of stained glass. Crescent-shaped porticoes open its faces to the light.
Abbas Hilmi II, the last khedive of Egypt, wanted a retreat in the Ottoman capital, and the architects Antonio Lasciac and Delfo Seminati finished it for him around 1907. Outside, one of the city's largest rose gardens and old magnolias frame the water view, and the grove fills with tulips each spring. Left to decay after the khedive's fall, the palace was rescued by Çelik Gülersoy's touring club and reopened in 1984. The city runs it now, so the inside is a restaurant rather than a museum: rooms shut whenever a wedding or a dinner takes them. The great hall and the salons are otherwise open to anyone who walks in.