Swedish navy corvette HMS Visby patrols in the Stockholm Archipelago, Sweden, in October. The Swedish military was searching for evidence of suspected undersea activity in its waters amid reports of a Russian submarine intrusion. Marko Saavala/TT News Agency/AP hide caption

itoggle caption Marko Saavala/TT News Agency/AP

The medieval town of Pitigliano is perched atop a massive volcanic rock, looking out over vineyards and olive groves. It was once home to a vibrant Jewish community, treated with civility or cruelty depending on who was in charge of the city; now, the town works to preserve and share the cultural history of Italian Jews. Michela Simoncini/Flickr hide caption

itoggle caption Michela Simoncini/Flickr

Barcelona football star Lionel Messi (right) leaves a courthouse in Gava, Spain, in September 2013, after a hearing on tax evasion charges. Messi and his father paid $6.5 million to try to settle the case, but his father may still go on trial. Josep Lago/AFP/Getty Images hide caption

itoggle caption Josep Lago/AFP/Getty Images

Nineteen-year-old Bosnian Serb Gavrilo Princip fired the shots that killed the heir to the Austro-Hungarian empire, Archduke Franz Ferdinand, and his wife, Sophie, during a visit to Sarajevo on June 28, 1914. Depending on whom you ask, he's either a hero or a terrorist. Historical Archives Sarajevo/AP hide caption

itoggle caption Historical Archives Sarajevo/AP