1000-year-old fortresses under siege of time
The late 9th century saw the construction of the first stone walls. Built from local limestone slabs, they were 1.5-2 meters thick. Within the enclosure of the walls there stood a stone watchtower.
Andrew Dovgan
Many Russian cities are impossible to imagine without ancient fortresses. Built around 1000 years ago, many of them are still standing today.
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