Today, in the deconsecrated church of San Tommaso, the museum of paleontology can be found, which was created above all for didactic reasons and inserted in the Umbrian Paolab, and hosts a series of interesting findings. What stands out among these is the bone structure of a "balena" (whale) a cetacean dating back two million years and found in the Allerona district and ancient inhabitant of the large Tiberino lake that covered the central plains of Umbria.
The church of San Tommaso was the patriarchal possession of San Giovanni in Laterano. At the time of free townships it was also the location of the town council meetings.The space existing between the churches of San Tommaso and San Cristoforo was called Camporeale because it belonged to the Camporeale family who arrived in Terni following Federico Barbarossa the members of which were named representatives of the emperor. That widening was once, a leafy garden, rich in spring water, which was used to quench the thirst of all that side of the town. A function now recalled in the fountain "of the hundred spouts" which runs along the side of San Tommaso.
The churchyard is remembered in Terni traditions as being the site of an episode, which in the historical memeory of Terni, has acquired the value of the symbol of the struggle against abuse and for freedom. It is said that a blacksmith rebelled against the arrogance of a tax-collector from Narni and instead of paying him the taxes owed, thrashed him to death. Siding with the blacksmith, Liberotto Liberotti, the people rose up against the bullying of the Narnese and Spoletini, who had conquered Terni after the devastation at the hands of Barbarossa's army, and with the support of Foligno and Todi, regained their freedom.