Photo of the Day

Associated Press
Members of the King's Troop Royal Horse Artillery fire a salvo during a 41 gun Royal Salute to celebrate the birthday of Queen Elizabeth II in Hyde Park in London, Tuesday, April 21, 2015. Some 71 horses pulled six World War I era 13 pounder field guns in the park for the salute. (AP Photo/Alastair Grant)

View gallery

500 photos

View Comments (2)