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Britain's Queen Elizabeth II and Prince Philip, Duke of Edinburgh, stand for the national anthem as they arrive on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Britain's Queen Elizabeth II shakes hands with a racegoer as Lord Lieutenant of Surrey Sarah Goad follows behind as she arrives on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Britain's Queen Elizabeth II and Prince Philip, Duke of Edinburgh, walk to the parade ring to view the horses before the Diamond Jubilee Coronation Cup race on Derby Day. It's the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012.
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Queen Elizabeth II is escorted by Lord Lieutenant of Surrey Sarah Goad as she greets racegoers on arrival at The Derby on June 2, 2012 in Epsom, England.
For only the second time in its history, the U.K. celebrates the Diamond Jubilee of a monarch. Her Majesty Queen Elizabeth II celebrates the 60th anniversary of her ascension to the throne. The Queen along with all the members of the royal family will participate in a River Pageant with a flotilla of 1,000 boats accompanying them down the Thames, a star studded free concert at Buckingham Palace, and a carriage procession and a Service of Thanksgiving at St Paul's Cathedral.
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Queen Elizabeth II and Prince Philip, Duke of Edinburgh arrive at The Derby on June 2, 2012 in Epsom, England.
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Britain's Queen Elizabeth II holds her race program at the parade ring before the Diamond Jubilee Coronation Cup on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012.
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Singer Katherine Jenkins stands on the race course at The Derby on June 2, 2012 in Epsom, England. For only the second time in its history, the U.K. celebrates the Diamond Jubilee of a monarch. Her Majesty Queen Elizabeth II celebrates the 60th anniversary of her ascension to the throne.
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Racegoers watch the action on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Racegoers on a balcony decorated with Union Flags watch the action on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012.
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Britain's Queen Elizabeth II and Prince Philip, Duke of Edinburgh, arrive on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012.
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Prince Philip, Duke of Edinburgh, walks in the parade ring before the Diamond Jubilee Coronation Cup on Derby Day, the second day of the Epsom Derby horse racing festival, in Surrey, England, on June 2, 2012.
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A racegoer sits wearing a Union Flag as he waits for the action to start on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012. It's the first official day of Queen Elizabeth II's Diamond Jubilee celebrations.
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Racegoers watch the action on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012 the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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A racegoer attends Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012
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A racegoer wears Union Flags on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Racegoers watch the action from the top of open-top buses on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Adam, six and Lucy Fergusson, seven, dressed as the Queen Elizabeth II and Prince Philip during a parade through Chichester, England as part of the celebrations to mark Queen Elizabeth II's Diamond Jubilee Saturday June 2, 2012.
Britain is marking Queen Elizabeth II's 60 years on the throne with a four-day holiday weekend of ceremony, symbolism and street parties.
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Britain's Queen Elizabeth II shakes hands with a racegoer as she arrives on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, England, on June 2, 2012.
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Prince Michael of Kent and Princess Michael of Kent arrive on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012.
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Princess Michael of Kent arrives on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012.
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Sophie, Countess of Wessex, arrives on Derby Day, the second day of the Epsom Derby horse racing festival at Epsom in Surrey, southern England, on June 2, 2012.
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Prince Richard, Duke of Gloucester, and his wife Birgitte, Duchess of Gloucester, arrive on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012
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From left, Princess Beatrice of York, Princess Eugenie of York and Prince Philip, Duke of Edinburgh, watch the action from the royal balcony on Derby Day.
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Prince Philip, Duke of Edinburgh, accompanies Britain's Queen Elizabeth II in the parade ring before the Diamond Jubilee Coronation Cup on Derby Day on June 2, 2012.
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Princess Beatrice of York waves from the royal balcony next to Princess Eugenie of York on Derby Day on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Britain's Queen Elizabeth II views the horses from the parade ring before the Diamond Jubilee Coronation Cup race on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012.
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Diamond Jubilee-themed biscuits are given out ahead of The Derby on June 2, 2012.
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Britain's Queen Elizabeth II stands next to Prince Edward, Earl of Wessex, from the royal balcony as she looks down on the winning horse in the Derby race on Derby Day, the second day of the Epsom Derby horse racing festival on June 2, 2012
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Winning horse St. Nicholas Abbey is brought into the winners enclosure after finishing first in the Diamond Jubilee Coronation Cup race on Derby Day on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Britain's Queen Elizabeth II walks out to present the trophies for the winning horse, St. Nicholas Abbey, in the Diamond Jubilee Coronation Cup race on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012.
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Queen Elizabeth II presents Joesph O'Brien with the trophy after winning the Coronation Cup at the Investec Derby, at the start of the weekend marking the queen's Diamond Jubilee celebrations, at Epsom Racecourse on June 2, 2012, in Epsom, England.
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Horse Camelot ridden by jockey Joseph O'Brien is seen after winning the Derby race on Derby Day on June 2, 2012, the first official day of Britain's Queen Elizabeth II's Diamond Jubilee celebrations.
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Horse Camelot ridden by jockey Joseph O'Brien is seen after winning the Derby race on Derby Day.
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Soldiers of the Honorable Artillery Company fire blank rounds during a 62-gun salute at the Tower of London on June 2, 2012, to mark the start of Diamond Jubilee weekend celebrations for Britain's Queen Elizabeth II.
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Soldiers of the Honorable Artillery Company fire blank rounds during a 62 gun salute at the Tower of London in front of Tower Bridge on June 2, 2012, to mark the start of Diamond Jubilee celebration for Britain's Queen Elizabeth II.
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A Yeoman speaks with soldiers of the Honorable Artillery Company during a 62 gun salute at the Tower of London on June 2, 2012, to mark the start of Diamond Jubilee weekend celebrations for Britain's Queen Elizabeth II.
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A royal supporter dressed in a military costume poses for pictures with soldiers as two children wearing masks featuring Queen Elizabeth II walk towards them on June 2, 2012 outside Buckingham Palace in London.
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Soldiers from the Queen's Guard march down the Mall outside Buckingham Palace in London, on June 2, 2012. Britain began four days of festivities for Queen Elizabeth II's Diamond Jubilee.
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A specially-built concert stage is pictured outside Buckingham Palace in London, on June 2, 2012, as Britain prepares to celebrate the Queen's Diamond Jubilee.
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Soldiers from the Queen's Guard march down the Mall outside Buckingham Palace in London, on June 2, 2012. Britain began four days of festivities for Queen Elizabeth II's Diamond Jubilee.
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Mounted police parade down the Mall outside Buckingham Palace in London, on June 2, 2012.
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A member of the Red Devils aerobatics group parachutes onto the racecourse with a big Union Flag on Derby Day, the second day of the Epsom Derby horse racing festival, at Epsom in Surrey, southern England, on June 2, 2012.