A classic. Bar San Calisto is a cafe-bar that is open at all hours of the day and is quintessentially Roman.

It attracts a mixed crowd of hipsters, blue-collar workers, unassuming tourists, young people and old people. San Calisto is inexpensive and no-frills, so don’t come here for elaborate cocktails. Peroni beer is the drink of choice, though you can order a spritz or gin tonic if that’s your preference. You’ll be lucky if you can snag one of the coveted tables outside which make for a convivial atmosphere. Otherwise, you’ll have to enjoy your drink like the Romans: leaning up against the parked vespas in the square.