2012: The Year in Washington, D.C. (83 images)

Prince Harry talks with Capt. Simon Maxwell, British Royal Marines, Wound Warriors Games medalist during a reception for U.S. and British wounded warriors at the British Ambassador's Residence in Washington, D.C. on May 7, 2012. UPI/Kevin Dietsch

U.S. President Barack Obama (R) and the Prime Minister of the United Kingdom David Cameron walk off the stage during an arrival ceremony on the South Lawn of the White House in Washington, D.C. on March 14, 2012. UPI/Kevin Dietsch

The Jefferson Memorial is seen framed between blooming cherry blossoms in Washington, D.C. on March 22, 2012. UPI/Kevin Dietsch

President Barack Obama points to the wall after fourteen year old Joey Hudy, from Phoenix, Arizona shot a marshmallow from the Extreme Marshmallow Cannon which he invented, while touring student science fair projects on exhibt in the State Dining Room at the White House on February 7, 2012. Obama hosted the second White House Science Fair celebrating the student winners of science, technology, engineering and math (STEM) competitions from across the country. UPI/Molly Riley/Pool