The German castles of Herrenchiemsee, Linderhof, and Schachen have been listed as UNESCO World Heritage sites, with their unique blend of French Baroque and Rococo styles reflecting King Ludwig's admiration for Louis XIV of France. The list includes the artificial cave at Linderhof, inspired by Wagner's opera Tannhaeuser, and the royal house at Schachen, where Ludwig celebrated St Louis' day on August 25. These sites have become an integral part of Bavarian identity, but their construction costs contributed to King Ludwig's downfall, leading to his deposition and mysterious death in Lake Starnberg.