The Fosse Ardeatine are disused sand quarries on the Via Ardeatina where 335 men and boys were shot in a single afternoon in 1944. You walk into the hillside through the tunnels first, low and rough, with lamps set far apart and markers showing where each group was brought in. Then you come out into a low hall where 335 identical stone coffins lie in rows under a vast slab of raw concrete, with one thin line of light around its edge.
On 23 March 1944, in an occupied city, partisans set off a bomb in Via Rasella that killed thirty-three men of a German police regiment. The order came back that ten Italians would be shot for each of them. The next afternoon prisoners were brought here in lorries, taken inside in small groups with their hands tied, and shot. Five more were killed than the order required, and they were not let go. The caves were then blown up to hide what was in them. The dead were of every kind the city held — a general, a priest, shopkeepers, students, workers, a boy of fifteen — and about seventy-five of them were Jews.