Porta Romana, Viterbo

San Sisto is a Romanesque-style Roman Catholic church in the town of Viterbo in the Region of Lazio. The church was once known as San Sisto fuori la Porta Romana.

Santa Maria in Gradi is a Roman Catholic church in the town of Viterbo in the region of Lazio, Italy. The church was once part of a Dominican order monastery, but the convent is now adapted to form buildings in the Tuscia University (Università degli Studi della Tuscia). The convent stood outside of Porta Romana.

Fontana Grande or Large Fountain is a medieval fountain located in a piazza of the same name, and the intersection of via Garibaldi and via Cavour, in the historic center of Viterbo, region of Lazio, Italy.

Santa Maria della Verità (Saint Mary of the Truth) is a Roman Catholic church in Viterbo, region of Lazio, Italy. Formerly a monastic church and sanctuary, the adjacent convent has now been converted into the Civic Museum while the church is now a parish church.

Santi Giuseppe e Teresa is a Baroque-style, deconsecrated Roman Catholic church in the historic Viterbo, regio of Lazio, Italy. The church is mainly vacant, with some municipal offices, and its fate undecided; amid the proposals are an open market or museum.

The Palazzo Gatti (also called Casa Gatti) is a 13th-century Gothic architecture palace located in Via Cardinal La Fontaine, 23 in central Viterbo, region of Lazio, Italy. This palace was initially erected in 1266 by the capitano del popolo Raniero Gatti. It was a larger complex of buildings, extending westward behind the former church of Santi Giuseppe e Teresa and the former convent of the Discalced Carmelite nuns that still occupies the block between Via La Fontaine and Via degli Scalzi (and the Piazza of the Fontana Grande). As was typical of the houses of noble families in this era, the Gatti Palace included defensive towers, six in number, that no longer exist. The palace is said to have hosted a number of visiting lords, including in 1328 Louis IV, Holy Roman Emperor (Ludovico il Bavaro); in 1452 Frederick III, Holy Roman Emperor on his way to Rome to be crowned by Pope Nicholas V and to receive his bride to be, the young Portuguese princess Lionora; and also in 1474, Federico da Montefeltro, Duke of Urbino. By 1496, the power of the Gatti family and their Ghibelline allies had been routed by the Guelph forces and their allies in Viterbo, including the Tignosi, Orsini, and Maganzesi families. In the following centuries, the palace fell into near ruin, and various connected structures were razed. Remaining today is a three-story stone structure with peaked-arch portals at the ground floor and mullioned windows on the upper floor. The garden terrace on the roof is a 20th-century addition, replacing a gabled roof previously there. A wide stone staircase, in the alleway leading north, from Via La Fontaine, rises up to the piano nobile. Above the mullioned windows are various heraldic coat of arms, including those of the Alessandri family.

Museo Civico di Viterbo (Italian for Civic Museum of Viterbo) is an archeologic and art museum located on Piazza Francesco Crispi #13 in Viterbo, region of Lazio, Italy. The museum is housed in the former 12th-century convent adjacent to the church of Santa Maria della Verità in the center of town.

The Monastero della Visitazione is a cloistered Cistercian monastic complex, including a monastery and church located on Via San Pietro in central Viterbo, region of Lazio, Italy. The complex is also referred to as the Monastero della Duchessa, due to its history. It stands across from the Istituto magistrale statale Santa Rosa di Viterbo.

The Istituto magistrale statale Santa Rosa di Viterbo is a high school focused on training teachers with specialties in human sciences, music, and dance, with main campus located on Via San Pietro # 27 in central Viterbo, region of Lazio, Italy. It stands across from the Monastero della Visitazione. The palatial building now site of the main campus of this Liceo classico was once the residence of the aristocratic Degli Atti family. In 1822, it belonged to the Collegio di Propaganda Fide and was given in emphyteusis to be converted into a female orphanage (orfanotropio), named a Scuola di Divina Provvidenza (School of Divine Providence) under the patronage of Cardinal Severoli and with the support of Giovanni Polidori, Stefano Gaspadori, and Luigi Falcinelli. A brief history of the school recounts that in 1927, the main secular secondary schools in Viterbo, now a provincial capital, were the Liceo ginnasio Umberto I and the Regio Istituto tecnico Paolo Savi. In order to foster a school for teachers, in 1932 the Comune and national government agreed on such a program with first classes starting 1934. In 1985 a course of socialogic, psychologi, and language education was started. In 1997 a formal Liceo of the Social Science was started.

San Giovanni in Zoccoli (St John in Sandals) is an Romanesque and Gothic-style, Roman Catholic church located in Via Mazzini #8 in Viterbo in the Region of Lazio, Italy.

The Palazzo Mazzatosta is a 13th-century aristocratic palace located on Via del Orologio in central Viterbo, region of Lazio, Italy. It has had numerous owners, and thus has been denominated the House (Casa) or Palazzetto (Small Palace) of the following families: Capocci Vico Sacchi Mazzatosta Cecchini The initial palace, originally a fortified medieval house with a tower, was refurbished by the militant Cardinal Raniero Capocci circa 1230–1240. While the Cardinal became a fervent Guelph, he had hosted both Pope Gregory IX in 1236 and Emperor Frederick II in 1240 at this palace. Frederic would besiege the city in 1234, and it would be successfully defended under the leadership of Capocci. In 1247, Frederick of Antioch, the illegitimate son of the emperor, had recaptured the city, and this led to the palace falling nearly to ruin. In 1260, the next owner Francesco Vico, donated the house to the Dominican convent of Santa Maria in Gradi (now occupied by University of Tuscia). It was however reassigned to Giovanni Sacchi, treasurer for Pope Boniface VIII. In 1375, the palace was owned by Angelo Tavernini. By the 15th-century, the palace was owned by members of the Mazzatosta who enlarged the rooms at the expense of the courtyard. enlarged the building again, using interior spaces and thus reducing the courtyards or richiastri. Nardo and Bartolomeo Mazzatosta, the treasurer of Pope Eugene IV owned the castle in the 16th-century. From 1560, the palace was owned by Giacomo Sacchi, physician (archiatra) of Pope Pius IV. The stone block balcony has heraldic arms of the Sacchi family (two bags); of the Caetani Anagni family (wavy stripes), which included Pope Boniface VIII; of the Capocci family (blue band on a gold background). The south facade, opening to a small piazzeta, has various buried arches from prior constructions. By the end of the 18th-century, the building was poorly maintained. In 1930, when the daughter of the Cecchini family married the successful lawyer Mario Scappucci the palace was refurbished. It suffered grave damage during the Second World War, but has been rebuilt. A notable feature of the palace is the large balcony on Via del Orologio.

San Pellegrino is a reconstructed Gothic-style, Roman Catholic church located in the piazza of the same name in central Viterbo, region of Lazio, Italy. The church stands across from the medieval Palazzo degli Alessandri.