Secret passages are hidden 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 bookshelves, under staircases, or through false walls, making them intriguing elements of architecture. In popular culture, secret passages are frequently featured in stories and movies, adding an element of mystery and adventure. They are often associated with characters like detectives or explorers who uncover hidden secrets. The allure of secret passages continues to captivate the imagination, inspiring treasure hunts and explorations in both fiction and real life.