Petroglyph, rock carving, depicting houses built on poles . Carved by the ancient Camunni people in the iron age between 1000-1600 BC. Rock no 24,  Foppi di Nadro, Riserva Naturale Incisioni Rupestri di Ceto, Cimbergo e Paspardo, Capo di Ponti, Valcamonica (Val Camonica), Lombardy plain, Italy