TOPSHOT - Governing Mayor of Berlin, Michael Mueller (2ndL) and his wife Claudia Mueller (L), German Chancellor Angela Merkel (C), Ingeborg Schaeuble and the President of the Bundestag (lower house of parliament) Wolfgang Schaeuble (R) sit prior to an ecumenical mass at the Berlin Cathedral during the German Unification Day public festival in Berlin, Germany, on October 3, 2018. - In Berlin, the three-day Citizens' Festival began on October 01, 2018 afternoon for the Day of German Unity. The Governing Mayor Michael Mueller (SPD) on October 03, 2018 receives the top representatives of the Federal and State governments in the City Hall. In addition, the country leaders, German President Frank-Walter Steinmeier, German Chancellor Angela Merkel (CDU) and other politicians attend an ecumenical service in the Berlin Cathedral and a ceremony in the State Opera. (Photo by Tobias SCHWARZ / AFP)