An explosion following an airstrike is seen in the Syrian town of Kobani from near the Mursitpinar border crossing in the southeastern town of Suruc, in Turkey's Sanliurfa province, on Wednesday. Yannis Behrakis/Reuters/Landov hide caption

itoggle caption Yannis Behrakis/Reuters/Landov

The site at Gobekli Tepe, or "Potbelly Hill," on the Urfa plain in southeastern Turkey is believed by some to be the world's first place of worship. This would upend the conventional thought that religion developed as a byproduct of human settlements. Vincent J. Musi/National Geographic Society/Corbis hide caption

itoggle caption Vincent J. Musi/National Geographic Society/Corbis

Thick smoke rises following an airstrike by the U.S.-led coalition in Kobani, Syria, while fighting continued between Syrian Kurds and the militants of the self-proclaimed Islamic State, as seen from Mursitpinar on the outskirts of Suruc, at the Turkey-Syria border on Wednesday. Lefteris Pitarakis/AP hide caption

itoggle caption Lefteris Pitarakis/AP

Smoke rises after a U.S.-led coalition airstrike on Kobani, Syria, Monday, as seen from the Turkish side of the border. Kurdish fighters say they're making progress against ISIS in the area. Tolga Bozoglu/EPA/LANDOV hide caption

itoggle caption Tolga Bozoglu/EPA/LANDOV

A black flag belonging to the so-called Islamic State is seen in the Syrian town of Kobani on Thursday, as seen from the Turkey-Syria border near the southeastern town of Suruc. Umit Bektas/Reuters/Landov hide caption

itoggle caption Umit Bektas/Reuters/Landov

Alleged Islamic State militants stand next to an ISIS flag atop a hill in the Syrian town of Ain al-Arab, called Kobane by the Kurds, as seen from the Turkish-Syrian border in Suruc, Turkey, on Monday. Aris Messinis/AFP/Getty Images hide caption

itoggle caption Aris Messinis/AFP/Getty Images

Turkish military forces of the Jandarma (police) block access at the Mursitpinar crossing gate near the Syrian border, where Syrian Kurdish people seek to pass, on Sunday. Turkey's leader says the country is willing to fight ISIS. Bulent Kilic/AFP/Getty Images hide caption

itoggle caption Bulent Kilic/AFP/Getty Images

Thousands of Syrians enter Turkey at Yumurtalik crossing gate near Suruc on Tuesday. The United Nations High Commissioner for Refugees has warned of a growing refugee crisis. Burhan Ozbilici/AP hide caption

itoggle caption Burhan Ozbilici/AP

Iraqi Kurdish peshmerga fighters take up positions around the town of Gwer in northern Iraq on Sept. 18. The Kurdish militia is aligned with the U.S. in the battle against the Islamic State. Mohamed Messara/EPA/Landov hide caption

itoggle caption Mohamed Messara/EPA/Landov

Syrian Kurds with their livestock wait behind a border fence near the southeastern town of Suruc in Sanliurfa province on Monday. Some 100,000 Kurds have fled from Syria into Turkey amid intense fighting between peshmerga forces and ISIS. Murad Sezer/Reuters/Landov hide caption

itoggle caption Murad Sezer/Reuters/Landov

A Syrian family waits near the Turkish-Syrian border after entering Turkey near the town of Sanliurfa Sunday. An estimated 70,000 Syrian Kurds have fled the extremist group the Islamic State this weekend. Ulas Yunus Tosun/EPA /LANDOV hide caption

itoggle caption Ulas Yunus Tosun/EPA /LANDOV

Prime Minister Ahmet Davutoglu, center, poses with dozens of freed Turkish hostages at the Esenboga Airport in Ankara Saturday. The group was held by militants in northern Iraq for more than three months. Adem Altan/AFP/Getty Images hide caption

itoggle caption Adem Altan/AFP/Getty Images

Ayaman with his wife, Selma, and their 1-month-old daughter, Shana, who was born in Turkey. Syrian refugee parents who give birth in Turkey are finding it difficult to register their newborns, and many are stateless. Jodi Hilton for NPR hide caption

itoggle caption Jodi Hilton for NPR