This cathedral, Gothic in design and completed in the 14th century and since then restored several times over, is the home to the Crypt and the Chapel of Naples Patron Saint, San Gennaro. Also it is where the Festival of San Gennaro, the infamous blood liquefaction ceremony takes place three times a year. It always works, otherwise Naples with face some bad doings. There's a possible scientific explanation for this phenomenon, but never mind. See the frescoes, altar pieces, and the bronze railing. frescoes in the Basilica of Santa Restituta are something special.