Ruegers Castle (Riegersburg Castle) stands dramatically atop an extinct volcano in Styria, Austria, at an elevation of 482 meters. This medieval fortress, first mentioned in 1138 as "Ruotkerspurch," features an impressive fortification system with three kilometres of walls, five gates, and two trenches enclosing 108 rooms. Owned by the Princely Family of Liechtenstein since 1822, the castle functions as a museum offering visitors access to 25 rooms with exhibitions covering the castle's history and its darker past involving witches and sorcerers. The imposing structure remains a symbol of medieval military architecture in Central Europe.