Athénée Palace
...that the Athénée Palace hotel in Bucharest, Romania, now a Hilton, may have been Europe's most notorious den of spies in the years leading up to World War II, and only slightly less so during the Cold War?
...that the <b id="mwCCo"><a class="mw-redirect" href="./Athénée_Palace" id="mwCCs" rel="mw:WikiLink" title="Athénée Palace">Athénée Palace</a></b> hotel in <a href="./Bucharest" id="mwCCw" rel="mw:WikiLink" title="Bucharest">Bucharest</a>, <a href="./Romania" id="mwCC0" rel="mw:WikiLink" title="Romania">Romania</a>, now a <a class="mw-redirect" href="./Hilton_International" id="mwCC4" rel="mw:WikiLink" title="Hilton International">Hilton</a>, may have been Europe's most notorious den of spies in the years leading up to <a href="./World_War_II" id="mwCC8" rel="mw:WikiLink" title="World War II">World War II</a>, and only slightly less so during the <a href="./Cold_War" id="mwCDA" rel="mw:WikiLink" title="Cold War">Cold War</a>?