Rome is a series of captivating contrasts.  The center city is filled with heroic streets and monumental plazas.  You can traverse centuries in a matter of yards - walking from the Renaissance then back to any of numerous lively squares (piazzas).  Perfectly restored monuments are often confronted by the drone of Vespas.  A great start is to sit at a table in one of the squares and watch the world go by.  Most of the lyrics of the romantic Italian songs will be in your head.  So enjoy an Italian wine and vive bene, spesso l'amore, di risata molto.