Secretary-General Kurt Waldheim When, the UN secretary-general, Dr. Kurt Waldheim, arrived at Cecilienhof Country House on February 8, 1975, he had already met with the leadership of the GDR. The day before [...] State Palaces and Gardens Potsdam-Sanssouci, Joachim Mückenberger. As a memento of his stay at Cecilienhof, Waldheim received an, up until then, unpublished photograph by the Soviet photographer Yevgeny [...] May 2, 1945. Waldheim criticized the inner-German border installations, which were visible from Cecilienhof. As a reaction to this, part of the “hinterland” back fencing was raised from two to six meters