The Munjara hydro power plant, located in Ozalj, Croatia, is a unique industrial facility resembling a castle. Operational since 1908, it continues to generate electricity today. Unlike typical industrial structures, Munjara challenges conventional expectations with its striking and attractive design. The plant stands as an example of how functionality and aesthetics can be combined successfully. It offers a surprising contrast to the often-unflattering image associated with industrial sites. Munjara's distinctive architecture has garnered attention, highlighting a hidden gem in Croatia’s energy infrastructure.