Archaeological site Geißenklösterle in Blaubeuren

You're standing at the Geissenklösterle, a cave in the valley of the Ach, just outside Blaubeuren in the Swabian Jura. It might not look like much at first, but take a good look at that opening in the rock. People were sitting here more than forty thousand years ago. And they were doing something remarkable: making art and music.