Migrants from Africa receive instruction in French in the port city of Calais. Some 3,000 migrants live in a makeshift camp known as "The Jungle." Most are seeking to travel on to Britain, while some are seeking asylum in France. Ari Shapiro/NPR hide caption

itoggle caption Ari Shapiro/NPR

Migrants queue to continue their journey north at a newly built registration and transit center near Gevgelija, Macedonia, on Sunday. More than 5,000 migrants crossed into Serbia on Sunday, resuming a journey to western Europe after an overwhelmed Macedonia gave up its attempts to stem the flow of mainly Syrian refugees by force. Ognen Teofilovski/Reuters/Landov hide caption

itoggle caption Ognen Teofilovski/Reuters/Landov

Former Energy Minister Panagiotis Lafazanis speaks during a news conference at Parliament in Athens, Greece, on Friday. He's leading rebels who decided to break away from the ruling Syriza party over objections to an international bailout plan. Stoyan Nenov/Reuters /Landov hide caption

itoggle caption Stoyan Nenov/Reuters /Landov

Syrian refugees prepare to board the passenger ship Eleftherios Venizelos at Kos's main port on Sunday in Kos, Greece. The vessel will house more than 2,500 refugees and migrants who entered the country from the Turkish coast. Milos Bicanski/Getty Images hide caption

itoggle caption Milos Bicanski/Getty Images

Greek Finance Minister Euclid Tsakalotos, seen in this July 31 photo, said Tuesday that only a few details still need to be worked out in the latest bailout agreement. Giannis Kotsiaris/AP hide caption

itoggle caption Giannis Kotsiaris/AP

Migrants arrive Monday on the Greek island of Chios, where residents have been assisting the new arrivals. John Liakos hide caption

itoggle caption John Liakos

Families play on the beach near the village of Thanos, Lemnos. The island has more than a hundred beaches. Greek tourists like Lemnos because it's affordable and relaxing, and foreign tourists like its unspoiled beauty and traditional charm. Joanna Kakissis for NPR hide caption

itoggle caption Joanna Kakissis for NPR

A worker picks clingstone peaches in Greece. Most of the country's farms are small and family owned. Production costs can be high, and Greek farmers have had trouble competing internationally. Konstantinos Tsakalidis/Bloomberg via Getty Images hide caption

itoggle caption Konstantinos Tsakalidis/Bloomberg via Getty Images

A shop owner arranges his goods in central Athens on Monday. Greek banks have reopened, but capital controls remain in place. Angelos Tzortzinis/AFP/Getty Images hide caption

itoggle caption Angelos Tzortzinis/AFP/Getty Images