Everyone knows the famous Trevi Fountain, but less well known are the underground passages that stretch beneath the Trevi district. Of this intricate maze of ancient vestiges, the underground archaeological area of Vicus Caprarius – the City of Water is a part: the structures of an imperial Domus, the castellum aquae of the Virgin Aqueduct, and the evocative exhibits (including the famous face of Alessandro helios) find discovered during the renovation of the former Cinema Trevi. On a journey backward in time, it is possible to touch on Rome’s millennial stratification and observe the archaeological evidence of the significant events that characterized the city’s history, from the realization of Aqua Virgo to the fire of Nero, from the sack of Alarico to the siege of the Goths