From Fiumicino airport take the train or the Leonardo Express to Roma Termini, from there follow the same directions of arriving by train.The best way is to take the train to Trastevere station, then take the tram number 8, direction Argentina Square for 6 stops (PiazzaSonnino). from there follow the same directions of arriving by train. From Ciampino airport take the bus Terravision ATAC or the shuttle to Termini, from there follow the same directions of arriving by train.