For only the second time in its history, the U.K. celebrated the Diamond Jubilee of a monarch. It's been 60 years since Her Majesty Queen Elizabeth II ascended to the throne. And London put on a spectacle.
Hundreds of rowing boats, barges and steamers filled the River Thames with a blaze of colour on Sunday as Queen Elizabeth II sailed through London as part of her spectacular diamond jubilee pageant.
Queen Elizabeth II arrives on Derby Day, the second day of the Epsom Derby horse racing festival. It was the first official day of Britain's Queen Elizabeth II's Diamond Jubilee.
Singer Katherine Jenkins attends the Investec Derby at the start of the weekend at Epsom Racecourse.
Anti-royalist protestors demonstrate beside the River Thames.
The royal barge "Spirit of Chartwell" carries Britain's Queen Elizabeth II down the River Thames.
Britain's Catherine, Duchess of Cambridge, (center) Prince William (right) and Prince Harry (left) wave as they pass the Houses of Parliament aboard the Royal barge.
Members of the Royal family (from left to right) Prince Charles, Prince of Wales, Prince Philip, Duke of Edinburgh, Prince William and Prince Harry talk onboard the "Spirit of Chartwell."
Charlie Gilkes, Michael Middleton, Pippa Middleton and James Middleton wave during the Diamond Jubilee Thames River Pageant.
Princess Anne, Princess Royal waves as she joins in the Diamond Jubilee Thames River Pageant.
Britain's Queen Elizabeth II and Camilla, Duchess of Cornwall, stand together on the royal barge "Spirit of Chartwell."
Fireworks explode over Tower Bridge during the Thames Diamond Jubilee Pageant on the River Thames.
Fireworks are fired from Tower Bridge marking the end of the Diamond Jubilee River Pageant on the River Thames in London.