Doura Europos It is the remaining of a fortified place overlooking the Euphrates from the top of the hill sending its shadows on brilliant water of the Euphrates. It was the last defensive fortress for the Romans against Persian attacks. It was a center for commercial caravans coming from different directions and sides especially Silk Road caravans. It was also a center for a great civilization where the cultures of east and west met in the first century AD. Mari The 10th Royal Dynasty ruled the kingdom of Mari in the third millennium BC. It was a strong capital but its wealth awakened the Babylon's greediness so they seized and destroyed it. Excavations in Mari unearthed a great palace of 300 rooms, temples, libraries in which thousands of cuneiform tables were found. These tables have clarified a great portion of Mesopotamia civilization. The statues, jewelry, frescos and ornaments engraved in stones found there can be seen in its statues. Ar'Rasafah During the Roma-Byzantine period, it was named Sergio polis in the honor of Saint Sergio's. It looks like an emerald oasis on the way of commercial caravans. The Arabs Gassanites had an interest in it and made it their capital. Al Munzir Bin Jableh built his palace there. At the Umayyad period, the caliph Hisham Bin Abdul Malek lived and hunted there. When the news of Holagu's crimes in Baghdad reached the inhabitants of Ar'Rasafah, they left to Salamieh and deserted it. Ar'Rasafah remained with its huge buildings to tell about it glory.