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Iraqi families displaced from the areas of Hawija and Hamrin in northern Iraq traveled to Kirkuk governorate in search of safety on Aug. 31. Thousands continue to flee ISIS-held areas. Marwan Ibrahim/AFP/Getty Images hide caption

A Danish policeman checks passengers' identity papers on a train arriving from Germany on Jan. 6. Officials say the small country is overwhelmed by the number of refugees seeking asylum. Sean Gallup/Getty Images hide caption

Han Seohee (right) and fellow North Korean defectors Lee Gwang-sung (left) and Hwang Soyeon (center) are regulars on Moranbong Club, a South Korean talk show featuring North Korean defectors. "There's a lot of prejudice toward North Korean defectors in South Korea," Han says. "So I wanted to show South Koreans that we're living here and trying the best we can." Haeryun Kang/for NPR hide caption

Christina Dimakou (right), a 30-year-old lawyer, works on the Greek island of Lesbos as a guardian for refugee and migrant children who travel alone. Joanna Kakissis/NPR hide caption

Ahead of a press conference with Premier Matteo Renzi and Iranian President Hassan Rouhani, wooden panels were erected around some Roman statues in Rome's Capitoline Museums. Giuseppe Lami/AP hide caption