Divje babe
Divje Babe (pronounced [ˈdiːwjɛ ˈbaːbɛ]) is a karst cave and archaeological park overlooking the Idrijca River in northwestern Slovenia. It is noted for its Paleolithic remains, including the worked bone of cave bear known as the Divje Babe Flute, which has controversially been interpreted as a Neanderthal musical instrument.
Cave data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).