Photographs of cities, temples and ruins of Babylon, Macedonia, Greece and Rome reveal heritage at risk as two-year Syrian revolution grinds on.
Roots of Civilizations in Syrian War's Path
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Frieze of a warrior and an angel on the wall of the Greco-Roman ruins of Palmyra, a major trade center in 44 BC and now a World Heritage site, photographed by Christian Sahner before the Syrian conflict began.
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Colonnade among the ruins of Apamea, founded by Greeks on the banks of the Orontes River, photographed by Christian Sahner before the Syrian conflict began
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Arched interior of a corridor in the Crac des Chevaliers, a World Heritage site photographed by Christian Sahner before the Syrian conflict began.