Helsingborg Castle, also known as Kärnan, is a historic fortress located in the city of Helsingborg, Sweden. Originally built in the late 14th century, it served as a defensive structure and a royal residence. The castle is notable for its impressive tower, which stands as a symbol of the city and offers panoramic views of the surrounding area. The castle has undergone various renovations and restorations over the centuries. Today, it is a popular tourist attraction, showcasing exhibitions about its history and the medieval period. Visitors can explore the castle grounds and learn about its significance in Swedish history.