The Norman-Swabian Castle, also known as Castel del Monte, is a 13th-century fortress located in Apulia, Italy. Built by the Holy Roman Emperor Frederick II, the castle is renowned for its unique octagonal shape and blend of architectural styles, including Romanesque and Gothic elements. It is a UNESCO World Heritage Site, celebrated for its historical significance and innovative design. The castle's strategic location on a hill offers stunning views of the surrounding landscape. Its construction features eight towers and a central courtyard, symbolizing the emperor's power and intellect. The Norman-Swabian Castle remains a popular tourist attraction, drawing visitors interested in history and architecture.