2,000-year-old Ruins in the Syrian Desert Face Destruction by ISIS

The ruins of an ancient city that have withstood centuries of conflict in the Syrian desert are now facing their greatest threat yet: the militants of the Islamic State. Activists, officials and citizens of the city say ISIS has launched a prolonged assault on Palmyra, an "oasis in the desert" north of Damascus that the U.N. cultural agency UNESCO says contains the "monumental ruins of a great city that was one of the most important cultural centers of the ancient world." The group's Director-General, Irina Bokova, has now appealed to the world for help saving the site it describes as having "outstanding universal value."