Picture Gallery: Royal Wedding

London, Greater London, UNITED KINGDOM : Workers put up an English field maple tree into Westminster Abbey in London in preparation for the royal wedding on April 26, 2011. Prince William and Kate Middleton are to marry in Westminster Abbey on April 29.

London, Greater London, UNITED KINGDOM : Workers carry an English field maple tree into Westminster Abbey in London in preparation for the royal wedding on April 26, 2011. Prince William and Kate Middleton are to marry in Westminster Abbey on April 29.

London, Greater London, UNITED KINGDOM : Royal fan John Loughrey sits on the ground in his sleeping bag on April 26, 2011, as he waits outside Londons Westminster Abbey (Background L) for the Royal Wedding between Britains Prince William and his fiancee Kate Middleton on Friday April 29.

London, Greater London, UNITED KINGDOM : Royal fan Terry Hutt poses for pictures as he camps outside Londons Westminster Abbey on April 27, 2011, for the royal wedding between Britains Prince William and his fiancee Kate Middleton. Up to 1,000 members of the British military attended a pre-dawn rehearsal for the royal wedding on Wednesday to ensure they get everything right on the big day.