Religious architecture ;
Santa Maria la Nova Cathedral: This is Caltanissetta's cathedral, housing the
Cathedra of the
Bishop of Caltanissetta, located on Piazza Garibaldi. Built between 1560 and 1620 and opened for worship in 1622, it was named to distinguish it from the older mother church, constructed in the 14th century near Pietrarossa Castle and later dubbed "la Vetere." Severely damaged in the 1943 bombings, its interior features three naves, with the central one adorned with frescoes by Flemish painter
Guglielmo Borremans. To the right of the main altar stands a wooden statue of
Saint Michael, the city's patron, crafted by sculptor Stefano Li Volsi. ;
Santo Spirito Abbey: Commissioned by
Count Roger and built atop an Arab farmstead, this church was consecrated in 1153. It comprises a single tri-apsed nave and boasts remarkable artistic elements, including a baptismal font and numerous interior frescoes. ;
Sant'Agata Church and Jesuit College: Erected between 1600 and 1610 on a pre-existing church also dedicated to
Saint Agatha, the church's adjacent
Jesuit college began construction in 1589 and was completed in the mid-19th century. The church, designed in a
Greek cross layout, is clad in marble and stucco, with frescoes largely repainted post-war by local artist Luigi Garbato. The Baroque-style college houses the
Luciano Scarabelli municipal library and the Vincenzo Bellini Institute of Higher Musical Studies. ; Santa Maria degli Angeli Church: Known as "la Vetere," it lies adjacent to Pietrarossa Castle. Built between the 13th and 14th centuries, it served as the city's parish church from 1239 to 1622, succeeding the Santo Spirito Abbey. Deconsecrated after
Italian unification and transferred to the
Ministry of War, it fell into decline but underwent extensive restoration in the early 2010s. Notable is its western main portal, adorned with sandstone friezes and a pointed archivolt. ; San Giovanni Church: Located in the oldest part of the historic center near the
San Domenico Church, it was founded in the 11th century but underwent multiple alterations. An 18th-century overhaul erased its medieval features, and it was destroyed in the 1943 bombing, rebuilt in 1945. Its interior features frescoes by
Pollaci. Also called "del Purgatorio" due to a 17th-century confraternity based there. ; San Sebastiano Church: Built around the 16th century as a tribute to the saint for deliverance from the plague, once home to the butchers' congregation, it sits on Piazza Garibaldi opposite the cathedral. Modified and restored several times, it was extended lengthwise in 1711 to accommodate the square, with enhancements to its interior and façade. The elegant façade, designed by architect Pasquale Saetta in the late 19th century, features columns of all three classical orders and statues by Biancardi. ;
San Domenico Church: Founded in 1400 after the
Moncada arrival, it was built in the Angeli district, then lacking churches. Its construction ties to the city and Montcada history: Antonio Moncada, to inherit his title in 1458, abandoned the Dominican order, funding the church and convent as compensation. Continually enriched, its façade—centrally convex, laterally concave—was added in the 17th century, as was a valuable painting of the Madonna of the Rosary by Tuscan
Filippo Paladini, depicting Francesco II Moncada's children. Recent findings reveal a hidden crypt, possibly among the city's oldest sites. ; Santa Flavia Church and Monastery: Situated on Sant'Anna hill's scenic slopes near the historic center's edge, they were commissioned by Maria d'Aragona, widow of Count Francesco II Moncada. The convent was built between the late 16th and early 17th centuries, while the church, atop the earlier Santa Venera church, was completed in 1793. Used as a military barracks in the 19th and 20th centuries, it fell into ruin but was restored between the late 20th century and early 2000s, uncovering the Santa Venera façade. ; Santa Croce Church and Monastery: Built in 1531 by Count Antonio III Moncada for Benedictine nuns, the church and monastery were renamed in 1590 after Countess Moncada donated a stone cross relic. In 1660, near the Abbey of Santo Spirito, a farmer found a stone with a natural image of the Cross. When it was found to be unaltered, it became a holy reliquary. The single-nave church features a sober 17th-century façade with sandstone blocks and
jalousie windows along its length. ; San Michele Church and Convent: Their construction stems from visions of
Capuchin friar Francesco Giarratana, who in 1625 saw
Archangel Michael barring a plague victim's entry to Caltanissetta, later confirmed by a corpse found at the site. The original chapel decayed but was rebuilt in 1837 after the city survived a cholera outbreak. The convent, built in 1888 by Father
Angelico Lipani, was the city's third Capuchin convent, following those in Xiboli and Pigni. ; Signore della Città Sanctuary: Originally a church for Saint Nicholas of Bari, since the 18th century it has housed the Black Christ, a wooden crucifix co-patron of the city. Key figures include Friar
Angelico Lipani, its 19th-century rector, and the Testasecca counts, whose donations expanded and embellished it. The Order of the Franciscan Sisters of the Lord of the City and the charitable institute of the same name were founded there. Inside are statues, including a Saint Francis by Biangardi, and 1950s mosaics by Bevilacqua adorning the altar. ; Sant'Antonio alla Saccara Church: Built in the 17th century, it was enlarged in 1866 and consecrated to the Madonna with the name of Santa Maria di Montemaggiore; the current name dates back to 1877. In 1911 the "Boccone del povero" institute was founded. It is located in the district of Cozzarello, also known as Saccara. ; Santa Maria della Provvidenza Church: Located in its eponymous district, it features a façade and bell tower from the early 20th century. ; Santa Maria della Grazia Church: A 17th-century church built on a votive chapel dedicated to the Madonna della Grazia, it has a single nave with lateral altars and a richly stucco-decorated
barrel vault. The main altar holds a Madonna della Grazia painting by
Pietro Antonio Novelli. ; Villa Cappellano: This is a monastery-farm built by the Jesuits in the 16th century and used as their summer residence until 1843, when they replaced it with the new house at Balate. It has several buildings that overlook a quadrangular courtyard; the main building has a typically
Baroque style façade. The chapel dedicated to the
Sacred Heart of Jesus is also part of the complex, and is where the wooden frame kept at the mother church of Delia comes from. Now abandoned, it is located 2 km from
Delia. ; Casina dei Gesuiti alle Balate: Built by the Jesuits in 1843 to replace Villa Cappellano as a summer retreat, it was expropriated after the Unification of Italy and has been owned by the Municipality of Caltanissetta since 1872. Today it is the residence of the Angelo Di Rocco Institute. ; Angeli Monumental Cemetery: More commonly known as the “cemetery of the Angels”, it is the municipal cemetery that was built at the end of 1878 near the church of Santa Maria degli Angeli, the adjoining convent of the Friars Minor and the castle of Pietrarossa. ; Carusi Cemetery: A small cemetery near the Gessolungo sulfur mine, created after the mining disaster of November 12, 1881, to bury nineteen
carusi, nine unidentified, who perished there.
Civil architecture ; Palazzo del Carmine: Construction began around 1371 outside the city walls, near a rural chapel dedicated to Saint James. By order of Guglielmo Peralta and his wife
Eleanor of Aragon, daughter of the Marquis of Randazzo, a
Carmelite Discalced Order convent and the
Maria Santissima Annunziata church (known as
Madonna del Carmine) were built nearby. Urban expansion by the 16th century integrated the complex into the city, flanked by the new San Giacomo and San Paolino churches. In the 19th century, after religious orders were suppressed, the Carmelites left, the convent was demolished for the municipal seat, and the adjacent churches were razed. The theater (Teatro Regina Margherita) replaced the recessed Salvatore church site. The palace, now the town hall, has an enriched façade, with only fragments of the original convent walls remaining. ; Teatro Margherita: Adjacent to Palazzo del Carmine, inaugurated in 1875 and named after Queen
Margherita of Savoy who visited Caltanissetta in 1881, it flourished culturally until
World War II. Post-war damage and neglect led to its closure in the 1970s after it lost its security clearance. After more than 20 years of restoration, it was reopened in 1997. ; Palazzo Moncada: Built in the early 17th century by Prince
Luis Guillermo de Moncada, it was intended as a grand Sicilian noble residence, evident in its scale and ornate balcony friezes. Construction halted when Guglielmo became Viceroy of
Valencia and moved to Spain. In 1915, a theater with a gallery was added, followed by a courtyard cinema (first Cineteatro Trieste, then Cineteatro Bauffremont, and since 2009 Multisala Moncada). Since 2010, some of the rooms have housed art galleries with permanent exhibitions on the
Montcada and on the local sculptor
Michele Tripisciano. ; Palazzo della Provincia: Designed in the 19th century by architect Giuseppe Di Bartolo to house provincial and municipal offices, its complexity led engineer Agostino Tacchini to scale it down in 1870 for provincial use only, completed in 1897. Contributors include local artists Luigi Greco (council chamber and main staircase),
Michele Tripisciano (sculptures), and Catanese Pasquale Sozzi (interiors). ; Palazzo delle Poste: Built in the 1920s after demolishing the 1637 Sant’Antonino Church to improve postal and telegraph services, it was designed by engineer G. Lombardo, constructed in 1931, and opened on October 29, 1934. It is a three-storey building, with frescoes by Gino Morici and architecture that reflect the Fascist style, with an attic on the upper floor. Acquired by Banca del Nisseno in 2004, it has been carefully restored after decades of disuse and is now the seat of the Superintendence for Cultural and Environmental Heritage, declared a site of historical-artistic value (D.A. nº 6669, June 22, 1999). ; Vittorio Emanuele II Hospital: Built during a violent cholera epidemic in the building of the second Capuchin Monastery, it was the city hospital for over a century, from 1868 to 1979, when it was replaced by the modern Sant'Elia Hospital. It is located in Viale Regina Margherita, next to Villa Amedeo. ; Banco di Sicilia Palace: Built around 1920 by Antonio Zanca on the site of the old "Moncada houses" on Corso Umberto I, it was among Caltanissetta's first reinforced concrete structures. In neoclassical style with local stone elements, it features a courtyard with a polychrome glass skylight. ; Palazzo Testasecca: Built in the 19th century in neoclassical style by the family of Count Ignazio Testasecca. It is located in Corso Vittorio Emanuele, in front of Palazzo Benintende. Inside, the main floor is frescoed in an eclectic style. ; Palazzo Benintende: Designed by Giuseppe Di Bartolo, it showcases layered architectural orders:
Ionic columns on the noble floor,
Doric on the second, enhanced by medallions and pilasters.
Giuseppe Garibaldi stayed here in 1862. It is located in Corso Vittorio Emanuele. ; Villa Mazzone: Also known as Hotel Mazzone, it is located between Via Francesco Crispi and Via Napoleone Colajanni and has a small, well-kept garden. It was built at the end of the nineteenth century to a design by Sebastiano Mottura to accommodate workers on the railroad, but at the beginning of the twentieth century it was enlarged and transformed into the Grand Hotel Concordia, which, after a few decades of fame, was finally closed in the seventies, overwhelmed by the economic crisis. Since the nineties it has been a retirement home. ; Palazzo Tumminelli-Paternò: A single-story 18th-century building formed by the consolidation of earlier units, it features exposed stone sides, carved stone balcony supports, and Spanish-style wrought-iron railings.
Other ; Pietrarossa Castle: Located on a hill near Caltanissetta, it is thought to date back to the 9th century, built over earlier
Sicanian sites. A medieval stronghold, it housed the tomb of Queen Adelasia (granddaughter of
Roger I of Sicily) until the late 11th century and hosted a Sicilian baronial parliament in 1378 to appoint the four vicars who governed Sicily. An earthquake in 1567 left only two towers visible today. At the base is the Angeli Monumental Cemetery. ; Monument to the Redeemer: Erected for the 1900 Jubilee on Mount San Giuliano in the geographic center of Sicily, it is one of Italy's regional monuments to the Redeemer. Designed by
Ernesto Basile, it has a stone base with an interior chapel and a bronze statue of Christ inspired by a marble figure in the
Basilica of St. John Lateran in Rome. Its devotion is linked to the "Feast of the Redeemer" on August 6. ; Piazza Garibaldi: The main square of the historic center, where Corso Umberto I and Corso Vittorio Emanuele intersect, is framed by the Town Hall, the Cathedral and the Church of San Sebastiano, with the "Triton Fountain" in the center. Between late 2008 and early 2009, the entire Piazza Garibaldi underwent repaving to replace the old asphalt surface with more aesthetically pleasing lava stone paving. This was part of an urban redevelopment project for the historic center called "La Grande Piazza." The work created a large pedestrian area, slightly raised above street level and isolated from vehicular traffic. Historically, before the unification of Italy, the square was named Piazza Ferdinando in honor of King Ferdinand II of Bourbon. ; Triton Fountain: A bronze group representing a Triton subduing a seahorse between two menacing sea monsters, inspired by the
Triton of Greek mythology, son of
Poseidon and
Amphitrite. Sculpted by the local artist
Michele Tripisciano in 1890, it was first placed in the atrium of Palazzo del Carmine. Designed by Gaetano Averna, it was moved to the center of Piazza Garibaldi, where it was unveiled on December 15, 1956, replacing an iron lamp-post with five lights. Between late 2008 and early 2009, the square was repaved with lava stone to bar vehicles, and the fountain was restored with lighting, reviving its grandeur. Often stylized, it is a symbol of the city. ; Monument to the Fallen: At the end of Viale Regina Margherita, it honors the 291 soldiers from Caltanissetta who died in the
Great War. A bronze statue represents the upright fatherland, holding a helmet with laurel and oak, a book and a palm, gesturing to the hero below, clutching the tricolor flag. On a stepped base with two cannons and a bronze laurel crown, it was unveiled on December 16, 1922, by a committee led by Dr. Luigi Sagona, who had lost relatives in the war. First placed near the seminary in "Viale delle Rimembranze", in 1965 it was moved 500 meters to its current location. It was sculpted by Cosimo Sorgi with bronze from the Laganà foundry, and hosts the
November 4 commemorations. ;
Caltanissetta Transmitter Station: This radio transmitting station for
longwave,
mediumwave, and
shortwave broadcasting featured a 286-meter (938-foot)
omnidirectional antenna, till 2025 Italy's tallest structure, on Sant’Anna hill at 660 meters (2,165 feet) above sea level. On November 2, 2013, the city council bought the antenna, its buildings, and surrounding land for €537,000 to prevent RAI's demolition and convert the wooded area into a public park. On November 23, 2021, Sicily's Department of Cultural Heritage instructed the Superintendence of Caltanissetta to seek cultural heritage status for the antenna, which is locally valued for its historical and cultural significance. On May 28, 2025, the Department of Cultural Heritage and Sicilian Identity revoked the protection constraint imposed on the transmitter on the LF-AM-HF frequencies, highlighting serious structural issues that would have prevented the implementation of extraordinary maintenance and could have posed a risk to public safety. On July 18, 2025, the Regional Administrative Court for Sicily authorized the demolition of the structure, recognizing the structural issues.[50] And the antenna was demolished on Wednesday 23rd at 5:40 pm by Rai Way. ;
Capodarso bridge: Located on the
Imera Meridionale, on the border between the territories of Caltanissetta and
Enna, it was built in 1553 at the behest of
Charles V; in the 18th century the scholar Antonio Chiusole included it among the three wonders of Sicily ("a mountain, a bridge and a fountain"). Originally it had the appearance of a humpback bridge, but during the 19th century it underwent radical changes to facilitate the passage of wagons, which gave it its current shape. Today it is located along the S.S. 122 Agrigentina, inside the Natural Reserve of Monte Capodarso and Valle dell'Imera Meridionale.
Public gardens The city has three municipal gardens ("villas"): • Villa Amedeo, the largest, on Viale Regina Margherita, • Villa Cordova, on Viale Conte Testasecca, • Villa Monica, on Via Filippo Turati. Additional green spaces include: • Dubini Park, on Viale Luigi Monaco, • Garden of Legality, on Viale Stefano Candura, • Robinson Park, on Via De Amicis. Smaller green areas exist in Piazza della Repubblica, Piazza Giovanni XXIII, Piazza Falcone e Borsellino, between Via Catania and Via Galilei, Via Niscemi, Piazza Iacono, and on Mount San Giuliano. Despite this, in 2018, usable public green space was just 4.5 m2 per inhabitant, ranking Caltanissetta near the bottom nationally. Two larger, undeveloped green areas awaiting funding are: • Balate Urban Park, between Via Rochester and the Balate-Pinzelli district, • Sant’Anna Park, at the decommissioned
RAI antenna site. == Archaeological sites ==