Hilton Istanbul
... that the Hilton Istanbul in Turkey, established in 1955, is the longest-serving member of the Hilton Hotels chain outside the United States?
... that the <b id="mwBGU"><a class="mw-redirect" href="./Hilton_Istanbul" id="mwBGY" rel="mw:WikiLink" title="Hilton Istanbul">Hilton Istanbul</a></b> <i id="mwBGc">(pictured)</i> in Turkey, established in 1955, is the longest-serving member of the <a href="./Hilton_Hotels_&amp;_Resorts" id="mwBGg" rel="mw:WikiLink" title="Hilton Hotels &amp; Resorts">Hilton Hotels</a> chain outside the United States?