Prison Gate in Vannes by EuroTourData
Prison Gate is the restored city gate connected to the semicircular gate tower, built in the 13th century on the northern side of the eastern line of Vannes Fortifications. The gate had a double system of drawbridges. During the French Revolution, the gate tower was used as a prison.

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© Creative Commons: Vannes - Porte Prison (01), author Fab5669. License: CC BY-SA 4.0. Cropped from original.
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