High Quality Content by WIKIPEDIA articles The Hohle Fels (also Hohlefels, Hohler Fels, the German for "hollow rock") is a cave in the Swabian Alb of Germany that has yielded a number of important archaeological finds dating to the Upper Paleolithic. Artifacts found in the cave represent some of the earliest examples of prehistoric art and musical instruments ever discovered. The cave is just outside the town of Schelklingen in the state of Baden-W...