A general view taken on March 31, 2016 shows a photographer holding his picture of the Temple of Bel taken on March 14, 2014 in front of the remains of the historic temple after it was destroyed by Islamic State (IS) group jihadists in September 2015 in the ancient Syrian city of Palmyra. AFP
Mandatory Credit: Photo by Xinhua/Shutterstock (4989215a)
Mohammad al-Asaad stands next to the portrait of his father Syrian archaeologist Khaled al-Asaad, Damascus, Syria - 23 Aug 2015. Xinhua/Shutterstock
King Juan Carlos and Queen Sofia of Spain along with Syrian archaeologist Khaled al-Asaad visiting the ancient city of Palmyra, Syria, October 21, 2003. ABACAPRESS.COM
The ancient oasis city of Palmyra, 215 kilometres northeast of Damascus. SANA / AFP
Syria's most prominent antiquities scholars, Khaled al-Asaad, speaks in Syria. SANA/AP
A Syrian soldier walks inside the compound of Palmyra's Temple of Bel in the ancient Syrian city on March 31, 2016. - The main building of the ancient temple was destroyed by the Islamic State AFP
The damaged Roman amphitheatre in the ancient city of Palmyra in central Syria taken by Israeli satellite.Israeli Ministry of Defence / AFP
The site of the Temple of Bel's "Cella", in the ancient Syrian city of Palmyra after it was partially destroyed by Islamic State Jihadists in September 2015. - AFP
A view of the remains of Baalshmin temple, which was destroyed by jihadists of the Islamic State (IS) group in 2015, in the Syrian ancient city of Palmyra. AFP
Syrian soldiers stand on March 31, 2016 on the ruins of Temple of Bel's "Cella", which was blown up by jihadists of the Islamic State (IS) group in August 2015, in the ancient Syrian city of Palmyra. AFP
French President Francois Mitterrand, his wife Danielle and the Syrian chief archaeologist of the ancient city of Palmyra, Khaled al-Assaad visit the ancient oasis city of Palmyra on November 27, 1984. AFP
A general view taken on March 31, 2016 shows a photographer holding his picture of the Temple of Bel taken on March 14, 2014 in front of the remains of the historic temple after it was destroyed by Islamic State (IS) group jihadists in September 2015 in the ancient Syrian city of Palmyra. AFP
Mandatory Credit: Photo by Xinhua/Shutterstock (4989215a)
Mohammad al-Asaad stands next to the portrait of his father Syrian archaeologist Khaled al-Asaad, Damascus, Syria - 23 Aug 2015. Xinhua/Shutterstock
King Juan Carlos and Queen Sofia of Spain along with Syrian archaeologist Khaled al-Asaad visiting the ancient city of Palmyra, Syria, October 21, 2003. ABACAPRESS.COM
The ancient oasis city of Palmyra, 215 kilometres northeast of Damascus. SANA / AFP
Syria's most prominent antiquities scholars, Khaled al-Asaad, speaks in Syria. SANA/AP
A Syrian soldier walks inside the compound of Palmyra's Temple of Bel in the ancient Syrian city on March 31, 2016. - The main building of the ancient temple was destroyed by the Islamic State AFP
The damaged Roman amphitheatre in the ancient city of Palmyra in central Syria taken by Israeli satellite.Israeli Ministry of Defence / AFP
The site of the Temple of Bel's "Cella", in the ancient Syrian city of Palmyra after it was partially destroyed by Islamic State Jihadists in September 2015. - AFP
A view of the remains of Baalshmin temple, which was destroyed by jihadists of the Islamic State (IS) group in 2015, in the Syrian ancient city of Palmyra. AFP
Syrian soldiers stand on March 31, 2016 on the ruins of Temple of Bel's "Cella", which was blown up by jihadists of the Islamic State (IS) group in August 2015, in the ancient Syrian city of Palmyra. AFP
French President Francois Mitterrand, his wife Danielle and the Syrian chief archaeologist of the ancient city of Palmyra, Khaled al-Assaad visit the ancient oasis city of Palmyra on November 27, 1984. AFP
A general view taken on March 31, 2016 shows a photographer holding his picture of the Temple of Bel taken on March 14, 2014 in front of the remains of the historic temple after it was destroyed by Islamic State (IS) group jihadists in September 2015 in the ancient Syrian city of Palmyra. AFP