Within a few streets of Piazza Venezia you can read three eras of Rome in a row: an emperor's building site, a Renaissance cardinal's palace and a medieval church porch with a stone face in it. This walk takes about two hours and begins at the top of the old imperial quarter, where the street drops towards the Colosseum.
It moves west and then south, and each stop sets up the next. Go in at the first two if you like. The rest are best enjoyed from the pavement and the courtyard.
1. Trajan's Markets: start in the shops
Begin at the Markets of Trajan, the brick hillside of arches that today holds the Museo dei Fori Imperiali. The museum is open daily and closes on 1 May and 25 December. Climb through the curved halls and look out over the Forum of Trajan below you, then notice how the building steps up the slope instead of fighting it.
2. Trajan's Column: read it from the bottom
Walk down to Trajan's Column, which was finished in 113 AD. A band of carved scenes winds around the shaft about twenty-three times and runs to roughly 190 metres if you unrolled it. It tells the story of the emperor's wars in Dacia, in what is now Romania. Trajan himself appears on it dozens of times.
The statue on top is not Trajan. Pope Sixtus V put a bronze Saint Peter there in 1587. Stand at the base and look up: the lower turns are the easiest to make out, and the upper ones are best left to a photograph.
3. Palazzo Venezia: a Renaissance palace and a balcony
Cross into Piazza Venezia and look for the square, castle-like front of Palazzo Venezia. It was begun in the 1450s for the Venetian cardinal Pietro Barbo, later Pope Paul II, and is often described as the first Renaissance palace in Rome. In 1929 Mussolini chose one of its halls as his office, and the small balcony over the square is where he gave speeches, among them the one announcing the Italian Empire in 1936.
4. The Mouth of Truth: end at the porch
Head south, away from the traffic and down towards the river, to the church of Santa Maria in Cosmedin. In its porch is the Mouth of Truth, an old marble disc carved with a bearded face and an open mouth. The porch can be seen without paying, and the church is open daily from 9:30 to 17:50.
Four stops, one short stretch of Rome: an emperor's building site and column, a cardinal's palace and a church porch. Going in at the first and standing back at the others keeps the walk light.



