The remains of the town of Ferento (in Latin: Ferentium) are only 6 kilometers from Viterbo (of which the municipality is part), on the Teverina road to the Tiber valley. Ferento was on the hilltop of Pianicara, where most probably displaced the nearby Acquarossa Etruscan town, destroyed around 500 BC. during the Tarquinia expansion wars. In the "Liber Coloniarum" and in a step of the "Vetromat Gromatici" dates back to 123 aC there is the first mention of the town of Ferento, referring to the assignment of a colony or perhaps to the division of some of the land. After the Social War (91-88 BC) around the 1st century, Ferento turns out to be Municipium. From excavations carried out, it turned out that in the Republican age, Ferento was developed along the Decumano Massimo of Ferentiensis Street, with a rectangular layout of the urban agglomeration. In the first Imperial age, Ferento reaches its maximum splendor, in fact dates back to this period The construction of the most important public buildings such as the Theater, the Forum (which has not yet been identified), a Fountain enclosed by numerous statues and Augusteo. In the 1st century AD, the Amphitheater was built, located in the north-eastern part of the area. The splendor of Ferento, continues in the following century and is called "Civitas Splendidissima" as it is written in a marble epigraph found near the city. From the 3rd century BC. the news about Ferento becomes more nebulae, however, from "Liber Pontificalis", it is evident that at that time, in the city was practiced worship for Sant'Eutizio dead near Soriano in Cimino during the persecutions put into effect by the emperor Aurelian in 269. The city was quoted in the 4th century by Emperor Constantine and other names are Silvestro (314-355) and Damaso (366-384), in the "Constituiti Titoli". During the Greek-Gothic war before and in the thirty-year war (575-603) between Byzantines and Longobards, the town of Ferento, was not spared from the anguish and vicissitudes of that period, that much of the centers of Southern Etruria, had to suffer, going inexorably towards a sad decline. The bishop's seat was also moved in the 7th century by Ferento to Bomarzo, which was in a more favorable position for the control of the Tiber valley. In the reorganization of the borders of the Tuscia, the Lombards divided the territory of Ferentan into three parts that ended in three different dioceses, that of Bagnoregio, that of Bomarzo and that of Tuscania. Great thanks to the excavations carried out on the site, it is to the "King Archeologist" Gustavo VI Adolfo of Sweden who for several years worked to bring to light important monumental remains, both of Roman and medieval age; among them is worth mentioning the Roman theater, even today it is home to summer shows. Today the excavations are entrusted to the campaigns promoted by the University of Tuscia. The most significant finds are exhibited at the Etruscan National Museum Rocca Albornoz, near Rocca Albornoz. A few kilometers from Ferento, the site of "Acquarossa" developed between the VIII and the VI century a.C. has been the subject of important archeological finds made between 1956 and 1978 by the Swedish Institute of Rome. Part of the buildings that emerged during the archaeological campaigns at Ferento have been reconstructed at the National Archaeological Museum in Viterbo; in particular, some marble statues depicting the characters of tragedy and the Greek-Roman comedy that presumably were placed in the front of the theater. There is also a small wooden reconstruction of the Ferentan theater.