Britain's Prince William, Duke of Cambridge, and his wife Catherine, Duchess of Cambridge, and their children Prince George and Princess Charlotte walk on the tarmac of the Airbus compound in Hamburg, northern Germany, before boarding their plane on Friday, July 21. The royal family visited Germany and Poland on a five-day European tour.
Britain's Prince William, Duke of Cambridge, and his wife Catherine, Duchess of Cambridge, and their children Prince George and Princess Charlotte walk on the tarmac of the Airbus compound in Hamburg, northern Germany, before boarding their plane on Friday, July 21. The royal family visited Germany and Poland on a five-day European tour.
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Prince George and Prince William view helicopter models H145 and H135 before departing from Hamburg on the last day of their official visit to Germany.
Prince George and Prince William view helicopter models H145 and H135 before departing from Hamburg on the last day of their official visit to Germany.
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The royal couple tours the Airbus training facilities with Klaus Richter, chief procurement officer for Airbus, Marco Wagner, human resources director for Airbus in Germany, and Hamburg Mayor Olaf Scholz.
The royal couple tours the Airbus training facilities with Klaus Richter, chief procurement officer for Airbus, Marco Wagner, human resources director for Airbus in Germany, and Hamburg Mayor Olaf Scholz.
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Catherine receives lessons on how to conduct an orchestra at Elbphilharmonie in Hamburg on Friday.
Catherine receives lessons on how to conduct an orchestra at Elbphilharmonie in Hamburg on Friday.
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Catherine and William say goodbye to German police officers who had led their motorcade on motorcycles at Berlin Hauptbahnhof main railway station before departing for Hamburg on July 21.
Catherine and William say goodbye to German police officers who had led their motorcade on motorcycles at Berlin Hauptbahnhof main railway station before departing for Hamburg on July 21.
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William and Catherine attend a reception at Claerchens Ballhaus dance hall in Berlin on Thursday, July 20.
William and Catherine attend a reception at Claerchens Ballhaus dance hall in Berlin on Thursday, July 20.
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Prince William hammers a tap into a beer barrel as Kate, far right, watches on July 20 in Heidelberg, Germany.
Prince William hammers a tap into a beer barrel as Kate, far right, watches on July 20 in Heidelberg, Germany.
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William and Kate participate in a friendly rowing race on July 20, in Heidelberg.
William and Kate participate in a friendly rowing race on July 20, in Heidelberg.
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William and Kate attempt to make pretzels on July 20, during a tour of Heidelberg's traditional German market.
William and Kate attempt to make pretzels on July 20, during a tour of Heidelberg's traditional German market.
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The duke and duchess don lab coats during a visit on July 20, with researchers at the German Cancer Research Institute in Heidelberg.
The duke and duchess don lab coats during a visit on July 20, with researchers at the German Cancer Research Institute in Heidelberg.
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Residents stand on a balcony decorated with a banner welcoming the Duchess of Cambridge to Heidelberg, Germany.
Residents stand on a balcony decorated with a banner welcoming the Duchess of Cambridge to Heidelberg, Germany.
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William and Kate toast during The Queen's Birthday Party at the British Ambassadorial Residence on July 19, in Berlin.
William and Kate toast during The Queen's Birthday Party at the British Ambassadorial Residence on July 19, in Berlin.
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The royal couple speaks with General Secretary of DFB Friedrich Curtius, left, during the Queen's Birthday Garden Party.
The royal couple speaks with General Secretary of DFB Friedrich Curtius, left, during the Queen's Birthday Garden Party.
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William and Kate meet with German President Frank-Walter Steinmeier and his wife, Elke Büdenbender, at Bellevue Castle on July 19 in Berlin.
William and Kate meet with German President Frank-Walter Steinmeier and his wife, Elke Büdenbender, at Bellevue Castle on July 19 in Berlin.
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William and Kate visit the Holocaust Memorial on July 19, in Berlin.
William and Kate visit the Holocaust Memorial on July 19, in Berlin.
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William and Kate visit the Brandenburg Gate on July 19, in Berlin.
William and Kate visit the Brandenburg Gate on July 19, in Berlin.
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German Chancellor Angela Merkel shows William and Kate a view from the Federal Chancellery on July 19, in Berlin, in this In this handout photo from the German government's press office.
German Chancellor Angela Merkel shows William and Kate a view from the Federal Chancellery on July 19, in Berlin, in this In this handout photo from the German government's press office.
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Kate, William and Merkel greet well-wishers shortly after the royal couple's arrival in Berlin.
Kate, William and Merkel greet well-wishers shortly after the royal couple's arrival in Berlin.
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The royal family arrives at the airport in Berlin on July 19, for a three-day visit to Germany.
The royal family arrives at the airport in Berlin on July 19, for a three-day visit to Germany.
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Basil Kerski, director of the European Solidarity Centre, accompanies the royals on July 18, as they visit Gdansk, Poland.
Basil Kerski, director of the European Solidarity Centre, accompanies the royals on July 18, as they visit Gdansk, Poland.
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William and Kate lay flowers at the Monument to the Fallen Shipyard Workers of 1970 at the European Solidarity Centre in Gdansk, Poland.
William and Kate lay flowers at the Monument to the Fallen Shipyard Workers of 1970 at the European Solidarity Centre in Gdansk, Poland.
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Prince William visits with performers from Gdansk Shakespeare Theatre, of which he is a patron, on July 18, in Gdansk, Poland.
Prince William visits with performers from Gdansk Shakespeare Theatre, of which he is a patron, on July 18, in Gdansk, Poland.
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Kate and William are shown a piece of amber by a local craftsman during a visit on July 18, to the Gdansk central market in Poland.
Kate and William are shown a piece of amber by a local craftsman during a visit on July 18, to the Gdansk central market in Poland.
ADAM WARZAWA/PAP/EPA
A crowd lines the street to greet the royal couple during their visit to Gdansk, Poland.
A crowd lines the street to greet the royal couple during their visit to Gdansk, Poland.
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Former Nazi concentration camp prisoners Manfred Goldberg, second from left, and Zigi Shipper speak with the royal couple during their visit to Stutthof, a World War II Nazi concentration camp in the village of Sztutowo, Poland.
Former Nazi concentration camp prisoners Manfred Goldberg, second from left, and Zigi Shipper speak with the royal couple during their visit to Stutthof, a World War II Nazi concentration camp in the village of Sztutowo, Poland.
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William and Kate view a display at the Stutthof Nazi concentration camp site in the village of Sztutowo, Poland.
William and Kate view a display at the Stutthof Nazi concentration camp site in the village of Sztutowo, Poland.
DOMINIK KULASZEWICZ/PAP/EPA
William speaks as Kate, left, and Polish President Andrzej Duda and his wife, Agata Kornhauser-Duda, listen during a Queen's birthday party on July 17, in the Orangery in Lazienki Park in Warsaw, Poland.
William speaks as Kate, left, and Polish President Andrzej Duda and his wife, Agata Kornhauser-Duda, listen during a Queen's birthday party on July 17, in the Orangery in Lazienki Park in Warsaw, Poland.
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William and Kate make a toast during a Queen's birthday party in Poland.
William and Kate make a toast during a Queen's birthday party in Poland.
RADEK PIETRUSZKA/EPA
William wears virtual-reality goggles as Kate laughs during a meeting with young Polish entrepreneurs in Warsaw, Poland.
William wears virtual-reality goggles as Kate laughs during a meeting with young Polish entrepreneurs in Warsaw, Poland.
LESZEK SZYMANSKI/PAP/EPA
Kate speaks with a WWII veteran during a visit to the Warsaw Rising Museum on July 17, the first day of the British royal couple's official visit to Poland.
Kate speaks with a WWII veteran during a visit to the Warsaw Rising Museum on July 17, the first day of the British royal couple's official visit to Poland.
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Duda, left, and William, kneel as they light candles during a visit to the Warsaw Uprising Museum while Poland's first lady, second from right, and Kate look on.
Duda, left, and William, kneel as they light candles during a visit to the Warsaw Uprising Museum while Poland's first lady, second from right, and Kate look on.
WOJTEK RADWANSKI/AFP/Getty Images
William poses for a selfie with a woman on July 17, as a crowd gathers outside the Presidential Palace in Warsaw, Poland, to greet the royals.
William poses for a selfie with a woman on July 17, as a crowd gathers outside the Presidential Palace in Warsaw, Poland, to greet the royals.
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Children welcome Kate in front of the presidential palace in Warsaw upon the royal family's arrival in Poland.
Children welcome Kate in front of the presidential palace in Warsaw upon the royal family's arrival in Poland.
Alik Keplicz/AP
Duda and his wife greet the Duke and Duchess of Cambridge at the Presidential Palace in Warsaw on the first day of the royal visit to Poland.
Duda and his wife greet the Duke and Duchess of Cambridge at the Presidential Palace in Warsaw on the first day of the royal visit to Poland.
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The royal couple disembarks with their children upon arrival on July 17, at the airport in Warsaw, Poland.
The royal couple disembarks with their children upon arrival on July 17, at the airport in Warsaw, Poland.
BARTLOMIEJ ZBOROWSKI/AFP/Getty Images
Prince George and Princess Charlotte peer through the window of the plane as they arrive on July 17, in Warsaw, Poland.
Prince George and Princess Charlotte peer through the window of the plane as they arrive on July 17, in Warsaw, Poland.
BARTLOMIEJ ZBOROWSKI/PAP/EPA