Secretary-General of the United Nations Ban Ki-moon (C) and his wife Yoo Soon-taek (R) talk with Auschwitz-Birkenau State Museum director Piotr Cywinski (2nd L), Rabbi Meir Lau (3rd L) and former Auschwitz prisoner and holocaust survivor Marian Turski (2nd R) as they visit the former Auschwitz concentration camp at the Auschwitz-Birkenau memorial site on November 18, 2013 in Oswiecim, Poland. AFP PHOTO / BARTOSZ SIEDLIK