These castles are located away from the main tourist destinations and represent different periods of European and American architecture. From medieval fortresses to royal residences, each castle tells its own story. The buildings occupy distinctive locations: on islands, in mountain caves, or surrounded by vineyards. The collection includes structures from various centuries that have remained relatively unknown due to their remote locations or historical circumstances. Some of these castles served as defensive strongholds, while others functioned as aristocratic homes or administrative centers. These sites offer visitors the opportunity to experience historical architecture in quiet settings and learn about the regional characteristics of different countries and periods.