From Termini station: Exit from platform 1 Head left on Via Marsala. At the stop light, Via Marsala changes name to Via Volturno; keep going straight. Via Gaeta will be your first right after that stoplight.
From Fiumicino Airport: Follow the signs for "ai treni."At the platform, buy a ticket for the non-stop train to Termini. Don't forget to validate your ticket with the little orange box before you get on the train.
From Gra (motorways): Exit at Tiburtina. Keep going straight until you reach Viale Regina Elena; turn right. Go straight until you reach Viale dell'Università and turn left. Follow this street until it ends at Viale Castro Pretorio. Turn right on Viale Catro Pretorio. Turn onto Via S.Martino della Battiglia. At the crossroad of Via S.M. della Battiglia & Via Volturno, turn right. Via Gaeta is the next right.