The source provides an extensive overview of Zvíkov Castle in the Czech Republic, known as the "King of Czech Castles," focusing heavily on its history and notorious supernatural legends. It documents the fortress's turbulent medieval origins, including its construction under the Přemyslid dynasty and its role in major conflicts like the Hussite and Thirty Years' Wars, which contributed to its current haunted reputation. The episode specifically explores the folklore associated with three key structures—the Markomanka, Hlíza, and Hláska towers—which are allegedly occupied by entities such as the mischievous Zvíkovský Rarášek (imp), the mournful White Lady, and spectral Hellhounds. Finally, the article summarizes modern paranormal investigations and tourist testimonies that affirm the castle's legacy as a site of unexplained phenomena and historical anguish.