A drone photo of Fort 9, with the canal-lined Great Gorgan Wall visible on the right. Built in the 5th or 6th century CE by the Sasanian Empire in Iran, the wall is 195 km long and 6–10 m wide, and features over 30 fortresses spaced at intervals of between 10 and 50 km [1031×1466]

    by Fuckoff555

    3 Comments

    1. the-software-man on

      Did they dig the canal and use the dirt to make the wall? Two engineering projects at once?

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