Montefiascone Cathedral

Sant'Andrea in Campo is a Romanesque style, Roman Catholic church in Montefiascone, province of Viterbo, Italy.

San Flaviano is a Romanesque style, Roman Catholic church in Montefiascone, in the province of Viterbo, Lazio, Italy.

The Sanctuary of the Madonna delle Grazie is a Roman Catholic church in Montefiascone, province of Viterbo, Lazio, Italy. It is located near the Basilica church of San Flaviano.

The Orto Botanico dell'Università della Tuscia (15 hectares) is a natural area and botanical garden operated by Tuscia University and located at Località Bulicame, Strada S. Caterina, Viterbo, Lazio, Italy. The garden was established in 1985 and officially inaugurated in 1991. It lies on the Viterbo plains beneath the Monti Cimini and is divided into the botanical garden proper (6 hectares) and the Park Bulicame natural area (9 hectares), source of a sulphurous thermal spring. The garden is organized into reconstructions of African oasis, Australian subtropical vegetation, Mediterranean scrub, and Mexican desert. Collections include an evolutionary display of pines, as well as agave, aloe, bamboo, Cereus, Chamaerops humilis, Cordyline australis, Ginkgo biloba, Euphorbia, Opuntia, Phoenix canariensis, P. dactilifera, and Washingtonia filifera.

Rome Viterbo Airport (Italian: Aeroporto di Roma-Viterbo (ICAO: LIRV) is a proposed re-use of Viterbo Air Force Base, a civilian, commercial and military airport about 80 kilometres (50 mi) north of Rome, Italy. Originally opened as a military airport in 1936, the airfield was dedicated to Tommaso Fabbri and is situated 3 km (1.9 mi) northwest of the town of Viterbo in the Lazio region. On November 26, 2007, Italian transport minister Alessandro Bianchi announced that Viterbo had been chosen by the Italian Ministry of Transport as the site of the next Airport to serve Rome, alongside Leonardo da Vinci Airport, and Rome Ciampino Airport. It was chosen over alternative sites in Latina, Frosinone, and Guidonia. However, these plans have since been abandoned.

The Ferento Roman Theater (Italian: Ferento Teatro Romano) is an ancient Roman theater in Ferentium, province of Viterbo, region of Lazio, Italy. It was built in the 1st century AD near the decumanus of ancient Ferentium. The theater went into decline after the fall of the Western Roman Empire. The medieval town of Ferentium underwent further decline after its destruction by Viterbo in 1172. The structure is still used in the summer for open-air concerts, representations and other spectacles.

Ferentium was a town of ancient Etruria, situated near the modern city of Viterbo in the northern part of the Roman province of Latium, now in modern Lazio. The city was also known as Ferentinum, Ferentum or Ferentia, and should not be confused with ancient Ferentinum (now Ferentino), which is in southern Lazio.

Diocese of Ferentium is a former bishopric (now titular see) with capital in town Ferentium near Viterbo (in Lazio, Central Italy), which absorbed it.

Marta is a comune (municipality) in the Province of Viterbo in the Italian region of Latium, located about 80 kilometres (50 mi) northwest of Rome and about 20 kilometres (12 mi) northwest of Viterbo. Marta borders the following municipalities: Capodimonte, Montefiascone, Tuscania, Viterbo. Marta is on the southern shore of Lake Bolsena near the source of the Marta River.

Lake Bolsena (Italian: Lago di Bolsena) is a lake of volcanic origin in the northern part of the province of Viterbo called Alto Lazio ("Upper Latium") or Tuscia in central Italy. It is the largest volcanic lake in Europe. Roman historic records indicate activity of the Vulsini volcano occurred as recently as 104 BC; it has been dormant since then. The two islands in the southern part of the lake were formed by underwater eruptions following the collapse that created the depression. The lake is supplied entirely from the aquifer, rainfall and runoff, with one outlet at the southern end. A sewage treatment plant filters most of the raw sewage from the surrounding communities. Constructed in 1996, it features pipelines transporting the sewage from every major community around the lake to the treatment plant on the Marta River; that is, no effluents enter the lake. Fertilizers are a second source of contamination. However, the chemical content of the lake is monitored at several stations around it. The lake has a long historic tradition. The Romans called it Lacus Volsinii, adapting the Etruscan name, Velzna, of the last Etruscan city to hold out against Rome, which was translocated after 264 BC, and its original location today has not been securely identified. The lake is bordered on one side by a modernized version of the Roman consular road Via Cassia. In addition to the historic sites of all periods, Lake Bolsena is currently surrounded by numerous tourist establishments, largely for camping, agrotourism and bed and breakfasts. One third of the lake was donated to the Catholic church by the noble family Alberici of Orvieto. In recognition of the donation, the Alberici family was honored with a ceremony three times a year performed by the Bishop of Orvieto.

Vulsini, also known as Volsini volcano, Vulsini Volcanic District, Vulsini Volcanic Complex and the Vulsinian District, is a circular region of intrusive igneous rock in Lazio, Italy, about 87 km (54 mi) to the north northwest of Rome, containing a cluster of calderas known to have been active in recent geologic times. The Vulsinian region is one of dozens of intrusive circular regions, most smaller than the Vulsinian, arranged in a band from Campania through Lazio, called the Roman Comagmatic Province. A comagmatic province is a geologic area of the same type and age igneous rock deriving from the same crustal magma. The Roman region is post-collisional; that is, the intrusions were not a result of the lateral stresses that created Italy and raised the Apennines, but were subsequent to Italy's creation. The Volsinian is the northernmost region. At relatively low altitude, the Vulsini calderas cover about 2,280 km2 (880 sq mi) and contain four Pleistocene-age depressions known as Bolsena, Latera, Vepe and Montefascione calderas. An alleged eruption occurred in 104 BC, but it is currently considered a misinterpretation of the description of a fire, and the most recent confirmed activity occurred in Pleistocene. The largest, the Bolsena caldera, which is roughly 16 km (9.9 mi) across, is filled with the waters of Lake Bolsena, which derive mainly from deep aquifers. Immediately to the northwest are the combined Latera and Vepe calderas, about 8 km (5.0 mi) by 11 km (6.8 mi). Vepe, to the north of Lake Mezzano (a very small crater lake west of Lake Bolsena) is what is known as a nested caldera; it arose in the previously existing Latera Caldera. Italian routes SS74 and SS312 follow the rim from Valentano through Latera westward, turning off before Mezzano on the other side. In addition the small Montefiascone caldera, also nested, lies between Montefiascone on its eastern rim and the lake. Two islands in the lake, Bisentina and Martana, were formed from airfall tuffs in Pompeii-like eruptions. Dozens of other tuff cones dot the region, mainly on the eastern side of the complex.The Italian Civil Protection Department considers Vulsini as extinct.

Acquarossa or Fosso Acqua Rossa is the modern name of the location of an ancient Etruscan settlement abandoned or destroyed in the second half of the sixth century BC. Located near Viterbo, in Etruria, was excavated by the Swedish Institute at Rome in the 1960s and 1970s. An elite complex similar to the Regia in Rome was excavated at the site.