What you will find inside a castle differs depending on the history of the structure. By its most strict definition, castles refer to the medieval-style fortresses. But some palaces and other elaborate residences and even manor houses are often referred to as a castle.
Depending on how the castle was used, you might discover all sorts of things inside, from lengthy stone hallways to historic chapels, to spiral staircases winding up and up and up. Other castles that served more as palatial residences might take your breath away with their valuable artwork, gilded decor, and elaborate furnishings.