Malbork Castle, also known as the Castle of the Teutonic Order in Malbork, is a medieval fortress located in Malbork, Poland. It is one of the largest brick castles in the world and a UNESCO World Heritage Site. Built in the 13th century by the Teutonic Knights, the castle served as their headquarters and played a significant role in the history of the region. The castle complex consists of three separate sections: the High Castle, the Middle Castle, and the Outer Bailey, all surrounded by defensive walls and towers. Visitors can explore the castle's impressive architecture, including its Gothic-style halls, courtyards, and chapels. Malbork Castle is a popular tourist destination and a fascinating glimpse into Poland's medieval past.