Secret passages are hidden routes or pathways that connect different areas within a building or structure. Often found in historical homes, castles, or even modern buildings, these passages were used for various purposes, such as escape routes, transporting goods, or maintaining privacy. They can be concealed behind bookshelves, under staircases, or through false walls. These intriguing features have captured the imagination of many, often appearing in literature and films. Famous examples include the Harry Potter series, where secret passages play a crucial role in the story. Today, secret passages are often sought after in real estate, adding an element of mystery and charm to properties.