Berlin residents Mareike Geiling (left) and her boyfriend, Jonas Kakoschke, speak with their roommate, a Muslim refugee from Mali. Geiling and Kokoschke helped launch a website that matches Germans willing to share their homes with new arrivals. Soraya Sarhaddi Nelson/NPR hide caption

itoggle caption Soraya Sarhaddi Nelson/NPR

Young fans of the German national soccer team drink iced tea in July 2010 as they watch the FIFA World Cup semi-final match Germany vs. Spain in an Arabic cafe in Berlin's Neukölln district. The neighborhood has gentrified rapidly in recent years, but many of the white families moving in leave once their children reach school age. Local groups are trying to change that. AFP/AFP/Getty Images hide caption

itoggle caption AFP/AFP/Getty Images

Russian opposition leader Boris Nemtsov, who was shot dead last Friday, was one of the most outspoken critics of President Vladimir Putin. No arrests have been made in his killing. Ivan Sekretarev/AP hide caption

itoggle caption Ivan Sekretarev/AP

Three women, two of them partially veiled, walk past a hijabs shop in Paris. The wearing of the veil has been a serious point of contention in France, with the government banning its use in public schools and the wearing of face-covering garments, including burqas and niqabs, in public. Miguel Medina/AFP/Getty Images hide caption

itoggle caption Miguel Medina/AFP/Getty Images