Obamas visit Windsor Castle in honor of Queen Elizabeth’s 90th birthday
US President Barack Obama and first lady Michelle Obama made a surprise visit to Britain's Windsor Castle on Friday to congratulate Queen Elizabeth on her 90th birthday, which fell on Thursday. The Obamas were met by the queen and her husband, Prince Phillip, when their helicoper landed on the lawn next to the castle. The Obamas made the stopover while flying back to Washington from Riyadh.