Ten forts have been located with the help of aerial photography and magnetic measurements in south-eastern Wielkopolska in Poland.
Several of these sites were mentioned in historical literature but their existence was unconfirmed and location was unknown because many monuments were leveled to make way for agricultural activity. The discovery comes as an surprise as the region was thought to be well researched archaeologically. Scientists not only tracked down unknown strongholds, but they also documented known monuments and determined their state of preservation.
To read further, log on to Heritage Daily.