The current appearance of the area of Piazza Venezia results from the reconfiguration work carried out between the late nineteenth and early twentieth century with the construction of the monument to Victor Emmanuel II. The buildings that faced the south side of the square – with the exception of the fifteenth-century Palazzo Venezia – were then demolished, and the palace of the Assicurazioni Generali was built.

The hallway of the museum gathers photographic, artistic and documentary evidence that tells the story of the area between Trajan's Forum and the Capitol, going back in time and reconstructing its evolution since ancient Rome.