Queen Elizabeth and Prince Philip view a flat belonging to Pauline Stainsby (L) during a visit to Priory View, an independent living scheme for older residents, in Dunstable, Britain April 11, 2017. REUTERS/Peter Nicholls
Queen Elizabeth looks at products on the shelves at a Waitrose supermarket during a visit to the town of Poundbury, Britain October 27, 2016. REUTERS/Justin Tallis/Pool
Queen Elizabeth boards a train at Kings Cross station in London, December 17, 2009. REUTERS/Stefan Rousseau/Pool
Queen Elizabeth II looks in her rear view mirror while watching the Pony Tandems at the Royal Windsor Horse Show, in Windsor, southern England May 11, 2006. REUTERS/Eddie Keogh
Queen Elizabeth tours the Grand Harbour in a traditional Maltese fishing boat during the State Visit and Commonwealth Heads of Government Meeting (CHOGM) in Valletta, Malta, November 28, 2015. REUTERS/Toby Melville
Queen Elizabeth is watched by gardener Norm Dunn (L) and her husband Prince Philip (R) as she plants a 'Black Sally' gum tree in the grounds of Government House in Canberra, Australia March 14, 2006. REUTERS/Will Burges
Onlookers watch as Queen Elizabeth leaves after a visit to West Quay Fisheries at Newhaven Fish Market in Sussex, southern England October 31, 2013. REUTERS/Arthur Edwards/Pool
Queen Elizabeth visits the new Asiatic lion enclosure at London Zoo, March 17, 2016. REUTERS/Arthur Edwards/Pool
Queen Elizabeth boards her carriage as she travels on the new Scottish Borders railway line, in Scotland, September 9, 2015. REUTERS/Andrew Milligan/Pool
Queen Elizabeth visits a Waitrose supermarket in the town of Poundbury, Britain October 27, 2016. REUTERS/Justin Tallis/Pool
Queen Elizabeth attends a commemoration service at Crathie Kirk Church in Crathie, Aberdeenshire August 4, 2014. REUTERS/Andrew Milligan/Pool
Queen Elizabeth travels by train to Potsdam on the second day of the state visit to Germany, November 3, 2004. REUTERS/Ian Jones/Pool
Queen Elizabeth talks with her grandson Prince William, watched by Prince Philip (R), after being shown around a Sea King search and rescue helicopter during a visit to RAF Valley, in north Wales April 1, 2011. REUTERS/Christopher Furlong/Pool
Queen Elizabeth rides her horse in the grounds of Windsor Castle, April 2, 2002. REUTERS/Dan Chung
Queen Elizabeth watches during her Diamond Jubilee concert in front of Buckingham Palace in London June 4, 2012. REUTERS/Dave Thompson/pool
Behind the scenes at the largest Irish dancing competition in the world with over 5,000 competitors in Dublin, Ireland.
Jews commemorate their flight from ancient Egypt as described in Exodus as they prepare for Passover.
Crowds of tourists and residents flock to parks to enjoy the cherry blossoms marking the start of spring.
Racegoers dress up for the Grand National at Aintree Racecourse.