Grudziądz Castle is a historic fortress located in the city of Grudziądz, Poland. Built in the 13th century, it served as a defensive structure and residence for the Teutonic Knights. The castle features impressive brick architecture and is situated on a hill overlooking the Vistula River, making it a strategic location. Over the centuries, the castle has undergone various renovations and restorations. Today, it is a popular tourist attraction, showcasing its rich history and offering visitors a glimpse into medieval life. The castle also hosts cultural events and exhibitions, contributing to the local heritage of Grudziądz.