Due to their original location, the relics in this room reflect the public buildings of Luni, the places which, as well as carrying out their specific functions, had the important role of facilitating citizens' relations and gatherings. The forum, the square, was the chosen place for meetings, where public and private business were very frequently mingled. The theatre and amphitheatre were the spaces for games and shows and hence entertainment. In the civil basilica commercial transactions were carried out and justice administered. The temples were the buildings where the cult ceremonies were celebrated and in the baths, which have not yet been identified in Luni, citizens could take hot and cold baths, do gymnastics, have massages and also develop social relations.
The many lamps on display were used in ancient times to light houses and also public buildings. For example, they were placed in the temples also with the function of ex-votos. The oil-lamps were generally made of pottery or bronze and had various types of decoration: in the bronze examples the handles in particular expressed the craftsman's exuberant decorative imagination. There were representations of animals such as bats, a symbol of the night to contrast with the light emitted by the lamp.