Tourists take pictures at the ancient Palmyra theater in the historical city of Palmyra April 18, 2008. Islamic State fighters in Syria have entered the ancient ruins of Palmyra after taking complete control of the central city, but there are no reports so far of any destruction of antiquities, a group monitoring the war said on May 21, 2015. Picture taken April 18, 2008. REUTERS/Omar Sanadiki – RTX1DX3J