Nyköpingshus is a historic castle located in Nyköping, Sweden. Built in the late 13th century, it served as a royal residence and played a significant role in Swedish history. The castle features a mix of architectural styles, reflecting its long history and various renovations over the centuries. Today, Nyköpingshus is a popular tourist attraction, offering guided tours and exhibitions that showcase its rich heritage. The castle grounds include beautiful gardens and scenic views of the surrounding area, making it a lovely spot for visitors to explore and learn about Sweden's past.