The Hohle Fels (]) (also Hohlefels, Hohler Fels, German for hollow rock) is a cave in the Swabian Jura of Germany that has yielded a number of important archaeological finds dating from 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-Württemberg, near Ulm. In 2017 the site became part of the UNESCO World Heritage Site Caves and Ice Age Art in the Swabian Jura.