(FILES) - A file picture taken on March 14, 2014 shows the famous Arch of Triumph (front) and a partial view of the ancient oasis city of Palmyra, 215 kilometres northeast of the Syrian capital, Damascus. Islamic State extremists have blown up the famous Arch of Triumph in the ancient Syrian city of Palmyra, said an activist and monitoring group, as the jihadists press their campaign to tear down the treasured heritage site. AFP PHOTO/JOSEPH EID