Britain's Prince William laughs during a visit at the Royal Navy Submarine Museum, in Gosport, south England, Tuesday June 10, 2008. The Prince toured HMS Alliance, a WWII submarine, and saw the Royal Navy's first ever submarine, the Holland 1, before opening the Area of Remembrance. William began his two-month attachment with the Royal Navy, undergoing basic naval training, to learn core skills like navigation and sea safety. (AP Photo/Lefteris Pitarakis, pool)
June 21, 2011 10:56:09 AM PDT
LONDON (AP) - June 21, 2011 --
Just-married Prince William is celebrating his 29th birthday at work.