Castel Nuovo, often referred to as Maschio Angioino, is a medieval castle located in the heart of Naples, Italy. Erected in 1279, it stands as a prominent historical and architectural landmark symbolizing the city’s rich history. Castel Nuovo has witnessed numerous historical events and has been used for various purposes over the centuries. With its iconic trapezoid layout and five round towers, the castle is an excellent specimen of medieval fortification. It was initially built by Charles I of Anjou and was later expanded and renovated by Alfonso V of Aragon. Its impressive ‘Triumphal Arch’ entrance was constructed to celebrate Alfonso V's entry into Naples. The castle now houses the Civic Museum, featuring artworks, sculptures, and other historical artifacts. Inside, the Palatine Chapel and the Baron's Hall are some of the most notable spaces, rich with artistic and historical significance. The castle’s strategic position overlooking the port once ensured the city's defense and now offers visitors stunning views of the Bay of Naples and Mount Vesuvius.