The museum preserves the archaeological evidence of a monumental burial ground dating back to the early Iron Age.

The archaeological investigations carried out in the mid-twentieth century led to the discovery of a "cremation" necropolis divided into three sectors, within which 92 both circular and rectangular enclosures enclosed the so-called "box tombs" which sometimes contained a burial single, sometimes double and in exceptional cases multiple. The 126 box tombs contained cinerary urns with numerous items of different and emblematic grave goods according to sex and social role. In particular, women's kits are characterized by the presence of rich ornamental objects and elements of bronze, gold and silver clothing : bracelets, rings, brooches, earrings, belts and studs; the male burials contain numerous iron weapons.

The monumentality of the burial ground and the richness of the necropolis equipment indicate that a prosperous community should live in Chiavari and dedicated to maritime and land trade.