Museo y Espacio Arqueológico Romano

These are waterworks dating from the first century AD, with a total of 20 metres of underground galleries, whose role as a sewer system during Roman times is indicative of the city of Assido-Caesarina's level of urban development. They were discovered in 1969, and were emptied at that time without any archaeological methods, only to be abandoned later. Their investigation and restoration would not get underway until 1991, at the initiative of the town and the Regional Ministry of Culture.

Three different structures are evident in this first century AD construction: sewers, Roman rooms and cryptoporticus (covered passageways).

The cloacas maximas, large collector sewers, are located on the outskirts of the city, and the entire network of smaller sewers that extended throughout the city flowed into them. The walls are made of sandstone ashlars and topped by barrel or tunnel vaults.

The floor is the original one and is waterproofed by a layer made up of a mixture of crushed lime-based ceramic. Some ridging can be seen on both sides, which would have prevented the filtration of sewage water through the walls. On the vaulted ceilings, some round manholes can be seen, which connected directly to the houses.