Odense Castle has shaped the heart of Denmark's third-largest city for over 500 years, originating from a Johannite monastery in the late 13th century before being transformed into a royal palace by King Frederik II in 1575. The main white Baroque structure with 13 bays was completed in 1723 and further extended in 1837, creating the four-winged complex visible today. Although the castle currently houses municipal offices and remains closed to the public, the grounds invite peaceful walks, while the adjacent Kongens Have (King's Garden) provides manicured lawns and flowerbeds for public enjoyment.