This is a taste of my 4 days of walking through Rome. If you're really keen to track the route (which I'm sure you're not), Markus created a KMZ file for Google Earth that tracks our movements and eating spots. It was like having a walking talking GPS
Day 1: Green
Day 2: Red
Day 3: Blue
Day 4: Yellow
Please note the number of circles we managed to complete and monuments/churches we passed a few times Piazza Nova in particular.