In my favourite Rome neighbourhood, Trastevere, in a little square just between Viale Trastevere and Piazza Santa Maria in Trastevere, lies the Bar San Callisto, an unpretentious, no-fuss bar that became one of my favourite hang-outs. The bar in itself is not much to look at with its bland walls, but the terrace gets filled up at night with students and the local bohemian crowd. The tiny square is quite cozy, it is facing the old San Callisto church, now abandoned. The drinks are cheap, it’s a very relaxing place and it’s easy to make new friends here.By day, their tartufo ice-cream and cappuccino has to be tried and by night, enjoy people watching on the terrace with San Callisto's eclectic crowd.