Demonstrators take part in a protest aimed at showing London's solidarity with the European Union following the recent EU referendum, in Trafalgar Square, central London, Britain, June 28, 2016. Picture taken June 28, 2016. REUTERS/Dylan Martinez/File Photo SEARCH "POY DECADE" FOR THIS STORY. SEARCH "REUTERS POY" FOR ALL BEST OF 2019 PACKAGES. TPX IMAGES OF THE DAY.