Hidden passages are secret routes or pathways that are often concealed within buildings or landscapes. They can be found in historical structures like castles or mansions, where they were used for various purposes, such as escape routes or to transport goods discreetly. These passages can be behind false walls, under floors, or even within the architecture itself. In literature and film, hidden passages frequently serve as intriguing plot devices. They can lead to unexpected discoveries or adventures, often associated with characters like detectives or explorers. The allure of hidden passages captures the imagination, inviting curiosity about what lies beyond the visible world.