Which Italian city is Castel Nuovo located in?

I was stationed in Naples in the U.S. Navy. I loved all the history in the city, the surrounding area, Italy as a whole, and the northern Mediterranean... from ancient Etruscan and Greek settlements, Roman ruins, Middle Ages and Renaissance cathedrals and other buildings, and Vatican City up through WWII military emplacements and cemeteries. Fascinating!

Thank goodness for an accurate picture- that’s how I got it! 👍 🇮🇹

Dang. I spent 3 weeks in Naples and didn't see this!!! Saw the women's prison that housed Sophia Loren though, climbed Mt. Vesuvius and toured Pompeii. Fantastic, crazy drivers, great food and awesome Mediterranean views! I recommend everyone go there.