Berlin

German Chancellor Angela Merkel attends a reception for Sternsinger (carol singers) at the Chancellery in Berlin, January 7, 2015. Merkel annually receives children who take part in the Sternsinger project, collecting money for charity programs that help children in need around the world.

Fabrizio Bensch/Reuters

German Chancellor Angela Merkel attends a reception for Sternsinger (carol singers) at the Chancellery in Berlin on Wednesday. Merkel annually receives children who take part in the Sternsinger project, collecting money for charity programs that help children in need around the world

German Chancellor Angela Merkel attends a special session of the German parliament to commemorate the 25th anniversary of the fall of the wall  at the Bundestag in Berlin, Friday, Nov. 7, 2014. On Nov. 9, Germany celebrate the 25th anniversary of the fall of the wall in 1989.

Markus Schreiber/AP

German Chancellor Angela Merkel attends a special session of the German parliament to commemorate the 25th anniversary of the fall of the wall at the Bundestag in Berlin, on Friday

A Lufthansa aircraft lands at the Frankfurt, central Germany, airport Monday morning. The Vereinigung Cockpit union announced a 35-hour strike at Lufthansa's short-haul fleet starting mid-Monday, the latest in a string of walkouts over retirement benefits.

Fredrik von Erichsen/dpa/AP

A Lufthansa aircraft lands at the Frankfurt, central Germany, airport Monday morning. The Vereinigung Cockpit union announced a 35-hour strike at Lufthansa’s short-haul fleet starting mid-Monday, the latest in a string of walkouts over retirement benefits

Physicians step out of disinfection chamber after cleaning their protective suits at quarantine station for patients with infectious diseases in Berlin

Thomas Peter/Reuters

Florian Steiner, right, a tropical medicine doctor, and Thomas Klotzkowski, a ward physician, step out of a disinfection chamber after cleaning their protective suits at a quarantine station for patients with infectious diseases at the Charite hospital, Berlin.

The German soccer squad  arrives in central Berlin Tuesday, July 15, 2014. Germany s World Cup-winning team has returned home  from Brazil to celebrate the country s fourth title with huge crowds of fans. The team s Boeing 747 touched down at Berlin s Tegel airport midmorning Tuesday after flying a lap of honor over the  fan mile  in front of the landmark Brandenburg Gate.

Markus Schreiber/AP

The German football team arrives in central Berlin on Tuesday. Germany’s World Cup-winning team has returned home from Brazil to celebrate the country s fourth title with huge crowds of fans lining the streets

German Chancellor Angela Merkel tours the exhibition: "The First World War, 1914-1918" ("Der Erster Weltkrieg, 1914-1918") on its official opening at the Deutsches Historisches Museum in Berlin, Germany

Zich Jochen/Getty Images

German Chancellor Angela Merkel tours the exhibition: “The First World War, 1914-1918″ (“Der Erster Weltkrieg, 1914-1918″) on its official opening at the Deutsches Historisches Museum in Berlin, Germany

German Chancellor Merkel and Canadian Prime Minister Harper address joint news conference at Chancellery in Berlin...German Chancellor Angela Merkel and Canadian Prime Minister Stephen Harper address a joint news conference at the Chancellery in Berlin March 27, 2014.               REUTERS/Kai Pfaffenbach (GERMANY  - Tags: POLITICS)

Kai Pfaffenbach/Reuters

German Chancellor Angela Merkel and Canadian Prime Minister Stephen Harper address a joint news conference at the Chancellery in Berlin 

Angela Merkel, Matteo Renzi...German Chancellor Angela Merkel, right, welcomes Prime Minister of Italy Matteo Renzi, left, for German and Italian government consultations at the chancellery in Berlin, Monday, March 17, 2014. (AP Photo/Markus Schreiber).

Markus Schreiber/AP

German chancellor Angela Merkel, right, welcomes Italy’s prime minister, Matteo Renzi, for intergovernmental consultations at the chancellery in Berlin on Monday. 

A man visits the snow covered Holocaust Memorial at the International Holocaust Remembrance Day in Berlin, Monday, Jan. 27, 2014. The German parliament Bundestag will hold a special remembrance session at the Reichstag building in commemoration of the liberation of the Auschwitz death camp on Jan. 27, 1045.

Markus Schreiber/AP

A man visits the Holocaust Memorial at the International Holocaust Remembrance Day in Berlin. The German parliament, the Bundestag, held a special remembrance session at the Reichstag building in commemoration of the liberation of the Auschwitz death camp on January 27, 1945.

A model presents a creation of fashion label Malaikaraiss'  Autumn Winter 2014 collection during the Mercedes Benz Fashion Week in Berlin, Wednesday, Jan. 15, 2014.

Markus Schreiber/AP

Shoes created by fashion label Polaire, shown during Mercedes Benz Fashion Week in Berlin

EDS NOTE NUDITY - A model wears a creation of Lena Hoschek's Autumn Winter 2014 collection during the Mercedes Benz Fashion Week in Berlin, Tuesday, Jan. 14, 2014.

Markus Schreiber/AP

A model shows off an outfit from Lena Hoschek’s autumn/winter 2014 collection during the Mercedes Benz Fashion Week in Berlin

German Chancellor Angela Merkel  uses  crutches as she attends the annual reception for Carolers at the chancellery in Berlin,  Tuesday Jan. 7, 2014. German Chancellor Angela Merkel  suffered a  pelvis  injury during ski holidays  in the Swiss Alps and will have to cut back on her work schedule for the next three weeks.

Markus Schreiber/AP

German Chancellor Angela Merkel attends the annual reception for carolers at the chancellery in Berlin on Tuesday on crutches. Ms Merkel suffered a pelvis injury while skiing in the Swiss Alps and has been advised to cut back on her work schedule for the next three weeks

A protester holds a placard calling for Germany to give political asylum to the fugitive former U.S. spy agency contractor Edward Snowden, outside the seat of the lower house of parliament, the Bundestag in Berlin.

Thomas Peter/Reuters

A protester holds a placard outside the Bundestag in Berlin calling for Germany to give political asylum to Edward Snowden, the fugitive former National Security Agency contractor

A road sign with graffiti reading "Angie's Massage Bunker" is pictured at the square in front of the Reichstag building

Tobias Schwartz/Reuters

A road sign with graffiti reading “Angie’s Massage Bunker” faces the Reichstag building, seat of the German lower house of parliament, the Bundestag, in Berlin

German Chancellor Angela Merkel (front) ...German Chancellor Angela Merkel (front) stands up at the start of a session of the Bundestag lower house of parliament dedicated to a probe into the handling by German security agencies of the Neo-Nazi National Socialist Underground (NSU) group, in Berlin on September 2, 2013.AFP

John Macdougall/AFP

German chancellor Angela Merkel at the start of a session of the Bundestag, the lower house of parliament in Berlin, looking into the handling by German security agencies of the neo-Nazi National Socialist Underground group 

Delegates at a meeting of Amnesty International hold up masks depicting ancient Egyptian Queen Nefertiti wearing a gas mask in protest against the ongoing violence as well as sexual violence against women in Egypt on August 19, 2013 in Berlin, Germany. In the latest turn of events in Egypt militants killed 25 policemen following days of clashes that have left over 800 people dead.

Sean Gallup/Getty Images

Delegates at a meeting of Amnesty International in Berlin, Germany, hold up masks on Monday depicting ancient Egyptian Queen Nefertiti wearing a gas mask in protest against the ongoing violence as well as sexual violence against women in Egypt. In the latest turn of events in Egyptian militants killed 25 policemen following days of clashes that have left over 800 people dead

German Chancellor Merkel writes her name on a blackboard at the Heinrich Schliemann Gymnasium in Berlin...German Chancellor Angela Merkel writes her name on a blackboard before conducting a lecture at the Heinrich Schliemann Gymnasium, a secondary school, in Berlin August 13, 2013. Merkel delivered a lecture to a 12th grade class on the building of the Berlin Wall in August 1961.

Reuters

German chancellor Angela Merkel, campaigning for a third term, filled in as a school history teacher on Tuesday on the 52nd anniversary of the building of the Berlin Wall. 

Workers attach photos by Kai Wiedenhoefer to the outside wall of the East Side Gallery in Berlin. Eight of Wiedenhoefer’s photographs of border and separation walls will be exhibited at the gallery until 13th September.

Paul Zinken/DPA/AP

Workers attach photos by Kai Wiedenhoefer to the outside wall of the East Side Gallery in Berlin. Eight of his photographs of border and separation walls will be exhibited at the gallery until September 13.

  A young woman from Brazil cools off in a fountain on a scorching hot summer day in the city center on June 20, 2013 in Berlin, Germany. Central Europe is in the grips of a heat wave in which temperatures in some regions have reached up to 38 degrees celsius.

Sean Gallup/Getty Images

A young woman from Brazil cools off in a fountain on a scorching hot summer day in the city centre in Berlin, Germany.

U.S. President Barack Obama waves as he arrives to give a speech in front of the Brandenburg Gate at Pariser Platz in Berlin.

Michael Kappeler/Reuters

Barack Obama, US president, waves as he arrives to give a speech in front of the Brandenburg Gate at Pariser Platz in Berlin on Wednesday