The work in the Circus Maximus, taking place in the area of the hemicycle, regards the conservation and enhancement of the monument, in particular the consolidation and restoration of several stretches of wall that are in a precarious condition, and its improvement from an urban-environmental point of view. The aim is to create a usable area that is both coherent and easily accessible. Therefore, a number of specific investigations were carried out, together with careful cleaning, in the areas heavily disturbed in the 1930s-40s when the monument was used as the site for exhibitions and recreational activities.

The most important find was a long, straight stretch of the Circus’ substructures, the only one known to date, on the Aventine side. This was a badly damaged and truncated part of the internal structure in cement conglomerate.
Furthermore, in the adjacent semicircular sector, in correspondence with the corner between via del Circo Massimo and piazza Porta Capena, the cleaning of other parts of the brick-built wall of the ima cavea provided a relatively complete vision of this sector of the tiers and the system of vomitoriae providing access. In the external zone, in fornix VI, a taberna was identified with a moderately well-preserved opus spicatum floor. Embedded in the floor was a large dolium (diameter circa 1.30 m), whose contents have not been excavated for the moment.

Investigations were undertaken on the Moletta tower (first mentioned by the sources in 1145). Here, the results of the excavation undertaken inside the tower in order to assess the structure’s stability were of great interest. Several floor levels were identified, linked not only to variations in the external levels, but also to the various changes in the structure’s use over the centuries. Lastly, the foundations of the tower itself were identified, constituted by large travertine blocks which seemed related to a collapse.

Finally, the work to reorganise the ground surface in the area corresponding to the track uncovered the remains of workshop-type structures (end of the 19th, beginning of the 20th century), as well as large blocks of reinforced cement probably relating to the Mostra Autarchica del Minerale Italiano (1939-1940).