Aqueduct of Valens

This guide to the Aqueduct of Valens in Istanbul opens in 365, when a rebel named Procopius raised a revolt against Emperor Valens and the city of Chalcedon declared for him. It follows what Valens did to Chalcedon after crushing the uprising, and how those stones are said to have ended up in the arches overhead. You'll also hear how later rulers, Byzantine and Ottoman alike, kept the aqueduct carrying water into Istanbul for well over a thousand years.