Bergenhus Fortress is a historic castle located in Bergen, Norway. It dates back to the 13th century and served as a royal residence and military stronghold. The fortress features impressive structures, including the Håkon's Hall, which was built for King Håkon IV, and the Rosenkrantz Tower, which offers stunning views of the surrounding area. Today, Bergenhus Fortress is a popular tourist attraction, showcasing Norway's medieval history. Visitors can explore the grounds, learn about the fortress's significance, and enjoy various cultural events held throughout the year. The site is an important symbol of Bergen's rich heritage.