Dezful

Dezful: Dezful (Dezh-pol, Persian: Fortress Bridge) a city in the Khuzestan province. Dezful is 6000 years old, but the most famous ancient structure of the city is a bridge that dates back to 300 BCE.The bridge was built during shapur I and it is the oldest full functioning bridge in the world. When the Roman Empire Valerian was defeated in Battle of Edessa, remain of his captured army was used to finish the bridge. It's believed that the bridge was made over the ruin of a much older bridge, built during Elamite dynasties.

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