17. Peep St. Peter's through the keyhole
Piazza dei Cavalieri di Malta, 3
Climb the Aventine Hill anytime, day or night, and look for the green door on the outside of the Priory of the Knights of Malta. Lean down to gaze through the gate's keyhole and you'll be playing peek-a-boo with St. Peter's: the dome is perfectly framed by the priory's manicured hedges.
Via di Santa Sabina
Just beyond Rome's keyhole, you can put up your feet and sit in the shade of orange trees in the Giardino degli Aranci. The park has a stunning terrace that looks out over the river and towards the Vatican.
19. Listen to slam poetry at Lettere Caffe
Via San Francesco a Ripa 100/101
Price: €5 for a drink
Every Monday you can watch the brave (angry?) souls who let it all out at Lettere Caffe's slam-poetry night. Order a beer, settle in, and listen to the original works.