Malbork Castle, located in northern Poland, is one of the most significant and well-preserved medieval castles in Europe. Built by the Teutonic Knights in the 13th century, this enormous Gothic fortress sits along the Nogat River and showcases remarkable medieval architecture. Malbork Castle is the largest brick castle in the world by surface area and is recognized as a UNESCO World Heritage Site. It was originally constructed as a fortified monastery and headquarters for the Teutonic Order, whi