AFP PICTURES OF THE YEAR 2016 UK Independence Party (UKIP) leader Nigel Farage poses for photographers as he leaves a polling station south of London on June 23, 2016, as Britain holds a referendum to vote on whether to remain in, or to leave the European Union (EU). Millions of Britons began voting Thursday in a bitterly-fought, knife-edge referendum that could tear up the island nation's EU membership and spark the greatest emergency of the bloc's 60-year history. / AFP PHOTO / BEN STANSALL