Deriving both its name and notoriety from the ancient Roman-era archway that has been partially incorporated into the building, the newest incarnation of the restaurant opened here in 2006, but its tradition dates back to at least the beginning of the 19th century, and counts James Joyce among its former loyal patrons. Nowadays it's owned by chef Luca Gioiello, who oversees a menu of largely traditional seafood specialties, with a few modern interpretations and more unusual combinations also included. Located on a quiet old square, the small terrace outside opposite the restaurant is an exceptionally pleasant place to dine.