The Harpers were in London for the G20. On April 1, Prime Minister Stephen Harper leaves his hotel in London England. Canadian born Manchester United soccer player Owen Hargreaves exchanges gifts with Prime Minister Stephen Harper in front of Tower Bridge. Mr. Harper waits for the start of an interview with CNN's Richard Quest. Prime Minister Harper chats with Elizabeth II, Queen of Great Britain and Charles, Prince of Wales during an audience at Buckingham Palace. Prime Minister Stephen Harper and his wife Laureen Harper leave Buckingham Palace after meeting with the Queen and Charles, Prince of Wales. British Prime Minister Gordon Brown and his wife Mrs. Sarah Brown wait for guests to arrive at Number 10 Downing Street. Mrs. Sarah Brown, Prime Minister Stephen Harper, his wife Mrs. Laureen Harper and British Prime Minister Gordon Brown stand outside Number 10 Downing Street in London, before the G20 working dinner. On April 2, Prime Minister Stephen Harper is greeted by British Prime Minister Gordon Brown at the G20 Summit in London. US President Barack Obama smiles with other leaders during a family photo at the G20 Summit. Prime Minister Stephen Harper chats with Finance Minister Jim Flaherty during a morning plenary session. President of the World Bank, Robert Zoellick welcomes Prime Minister Stephen Harper to a second family photo after Prime Minister Harper missed the first family photo at the G20 Summit. After a long day, Mr. Harper stops to a grocery store to buy some snacks for Rachel and Ben Harper. Laureen Harper is greeted by Sarah Brown during her visit to the Royal Opera House, Covent Garden, in London, England. The G20 leaders' spouses: Ban Soon Taek, wife of UN Secretary General Ban Ki-moon, Chikako Aso, wife of Japanese Prime Minister Taro Aso, Laureen Harper, wife of Canadian Prime Minister Stephen Harper, Gursharan Kaur, wife of Indian Prime Minister Manmohan Singh, Michelle Obama, first lady of the USA, pose for a group picture during their visit to the Royal Opera House, Covent Garden. Laureen Harper tours the Tower of London with her kids, Ben and Rachel. She also takes her kids on a boat tour down the Thames River. Mr. Harper and his family go out for dinner at the OXO restaurant. On April 3, Prime Minister Stephen Harper meets with David Cameron, Leader of the Conservative Party and of Her Majesty's Loyal Opposition in the United Kingdom. Prime Minister Stephen Harper and his family cross Abbey Road where the Beatles were pictured for the cover of their Abbey Road album years earlier. Stephen Harper tours the Abbey Road recording studios. Prime Minister Stephen Harper plays the original pianos used by the Beatles during their recording sessions at the Abbey Road recording studios. Prime Minister Stephen Harper and his wife Laureen Harper pause for a photo with police in front of the Abbey Road recording studios in London. The tour was a 50th birthday gift from his wife Laureen Harper. Prime Minister Stephen Harper boards the Airbus following the G20 Summit in London. While in London, Prime Minister Stephen Harper and Mrs. Laureen Harper pause with staff of the High Commission of Canada in United Kingdom. Prime Minister Stephen Harper says goodbye to James Wright, High Commissioner to the United Kingdom, and other staff following the G20 Summit in London. The following people are also depicted in the photographs: Laureen Harper, Ben Harper, Rachel Harper, Owen Hargreaves, Camilla, Duchess of Cornwall, Charles, Prince of Wales, Gordon Brown, Sarah Brown, Barack Obama, Michelle Obama, Dominique Strauss-Kahn, Angela Merkel, Dimitri Soudas, Jeremy Hunt, Ray Novak, Jim Flaherty, Kevin Rudd, Mirek Topolánek, Mario Draghi, Robert Zoellick, David Cameron.