The Aosta archaeological area covers one hectare and bares witness to the site's uninterrupted historical development from the end of the Neolithic to the Chalcolithic (Copper Age), and subsequent Bronze Age, Iron Age, Roman and Medieval periods, right up to modern times, spanning from 4000 BC until the 21th century.
The visit itinerary for the megalithic area of Saint Martin de Corléans begins with a chronological descent from today to the prehistoric period.
Along a route dotted with images referring to human history, the museum’s pathways lead visitors to the level of the actual archaeological site (at c. 6 meters below street level).
For more than two thousand years, the area was used as a cemetery, being then progressively abandoned with the approach of the Bronze Age. The presence of Gallic tombs on an alluvial layer from the Iron Age as well as Roman tombs on the upper digging levels where the Romanesque church dedicated to San Martino stood, further confirmed the interesting phenomenon of the persistence of its funeral usage.