FROM TERMINI STATION:
you can take one of the following buses:
38/ 92/ 223/ 360
FROM TIBURTINA STATION :
take Metro B direction Laurentina and get off at Termini, get out of Piazza dei Cinquecento and see above.
FROM LEONARDO DA VINCI AIRPORT (FIUMICINO) and CIAMPINO AIRPORT:
take shuttle bus to Termini station and from here see above.