The trade in stolen items has become increasingly important to the militant group as its oil revenues dwindle.
Law enforcement can use the nanotechnology to track artifacts, though some are skeptical the trafficking is as widespread as reported.
Famous conductor leads the Mariinsky Symphony Orchestra in concert at city's Roman Theater.
Before and after images of key landmarks razed by ISIS in Palmyra.
Directorate of Syrian Antiquities shows damage to city's museum and the Temple of Bel.
A promise to revive the Roman-era monuments "as a message against terrorism."
The military is reportedly just hundreds of meters from the city's ancient sites.
New campaign argues that illicit trade is turning Syrian history into a weapon of war