Obłazowa Cave in Podkarpacie, Poland – that is the place, where the oldest boomerang in the world was found. It was dated to 33 000 years BP. The Obłazowa Cave probably was a paleolithic shrine.
Location GPS of Obłazowa Cave:
49°25'43.1"N 20°07'33.2"E
(49.428635, 20.125878)
(49.428635, 20.125878)