Altenburg Castle is a historic fortress located in Altenburg, Germany. Built in the 10th century, it served as a residence for the Dukes of Saxony. The castle features a mix of architectural styles, reflecting its long history and various renovations over the centuries. Today, Altenburg Castle is a popular tourist attraction, offering guided tours that showcase its impressive towers, halls, and gardens. Visitors can explore the castle's rich history and enjoy panoramic views of the surrounding landscape, making it a significant cultural landmark in the region.