While in Piazza Venezia, look for a big main road called Via Del Corso. You can see down the road extremely long, which has awesome shopping and a great environment. It will give you a real feel of the city. It is much easier to walk rather than take public transportation because there is not a close bus station, making buses less convenient. Plus, you save a euro. Take Del Corso all the way to Piazza del Popolo. About half way there you will pass a church called San Carlo al Corso on your left. Continue up the Corso through Piazza del Popolo to Piazza Flaminio. You may have to walk up a winding hill to get to this specific piazza which is at the foot of Villa Borghese. In order to get through the museum, take a stroll through Villa Borghese following Viale del Murotorto. This winds through the park, as you will pass Galoppatoio and come to Piazzele Brasile. Continue in the same direction down Via Pinciana until you get to Viale dell’ Uccelliera, and make a left. This will take you right to the Borghese Gallery.
In order to be able to view the gallery, reservations are mandatory. To find out more information about reservations and cost, visit http://www.ticketeria.it/ticketeria/borghese-eng.asp. In the gallery, the amazing art you will find is divided into two sections: a sculpture collection and picture gallery (collection of paintings). A few of the more important works included here are Bernini’s David, his Apollo and Daphne (his most famous sculpture), and Titian’s painting called Sacred and Profane Love. Within the two hours you are allowed here, Rick Steves suggest to spend at least an hour and a half in the ground floor sculpture gallery.
Within a four mile circumference in addition to the gallery and many other attractions, there is a zoo and schools of archeology. It may be quite enjoyable to cover this distance with a nice bike ride (bikes available to rent in the villa).