A cappello romano is a funny-looking hat worn by some very special people, like priests and lawyers. It looks kind of like a small, flat-topped round cake with a wide brim around it. The hat is usually black or white, and it has a fancy tassel on top that wiggles when you move.
The cappello romano is also called a saturno hat, because it kind of looks like the planet Saturn with its rings. But unlike Saturn, you can't see through the cappello romano!
People wear the cappello romano to show that they are very important and serious about what they do. It's like a special uniform that helps them stand out and be recognized. So if you see someone wearing a cappello romano, remember that they are very important and you should be very respectful to them.