Labyrinth of Buda Castle (Budavári Labirintus)
Deep beneath the cobblestone streets of Castle Hill lies the Labyrinth of Buda Castle, a vast natural cave system transformed over centuries into dungeons, wine cellars, and military shelters. Most famously used as a subterranean prison where Vlad the Impaler was held captive in the 15th century, the pitch-black tunnels are renowned for phantom encounters, mysterious fog, and the lingering presence of medieval prisoners.