A fortified structure consisting of concentric features was noticed by aerial archaeologist near Oława, South Poland. The researchers believe the structure may be 7000 years old.
Archaeologists managed to uncover prehistoric structures at the site of recently discovered circular enclosures, believed to be 7000-year-old Neolithic rondel, located in Nowe Objezierze, West Poland.
A series of concentric cropmarks, indicating the possible presence of a rondel-like structure, has been sighted at Żelichów, North-West Poland. This find is extremely rare as only a handful of such Neolithic structures are known from Poland.