Free self-guided itinerary. This is a travel guide, not a bookable guided tour.
This walk stays on the flat, returns to where it started, and breaks into five short sections. You can do two of them, stop for three hours, and pick it up again — which is how most people actually walk around Rome. About 3.5 km in total.
Start: Piazza Navona.
The square is that long oval shape because it sits on the outline of a Roman stadium; the buildings follow the line of the seating. Leave from the eastern side and work east through the lanes.
The Pantheon appears suddenly — there is no grand approach, which is part of its effect. It is free to enter, it is still a working church, and the hole in the roof is open to the sky, so it rains inside.
Behind the Pantheon, Piazza della Minerva has an elephant carrying an obelisk — small, odd, and easy to walk past.
Continue south to Largo di Torre Argentina, a sunken square of republican-era temple ruins several metres below the modern street. It is the clearest illustration in the centre of how far the ancient ground level has dropped below today’s.
Head west into the tighter lanes. Campo de’ Fiori is a market square in the morning and something else entirely at night; it is one of the few central squares without a church on it.
Just south, Piazza Farnese is thirty seconds away and almost always empty by comparison — a useful trick to remember when the Campo is full.
Via Giulia is a straight sixteenth-century street cut through the medieval fabric, and after the density of the previous section the change is obvious underfoot.
Follow it, then step across to the riverbank near Ponte Sisto for the view towards the dome of St Peter’s. Trastevere is directly across the bridge if you want to extend the walk into a longer afternoon.
Return north-east along Via del Governo Vecchio, a narrow street of small shops that runs almost all the way back to Piazza Navona and arrives at its southern end.
You will have circled the historic centre without repeating a street.
Early morning or after five in the afternoon. The middle of the day in the centro storico is hot, crowded and shadeless from May onwards.
Drinking fountains — the small cast-iron ones running constantly — are safe and free; the water is cold and this is the main reason not to buy bottled water. Church interiors require covered shoulders and knees, and some close for several hours in the middle of the day.