Biblioteca Chelliana

Palazzo Mensini is a palace in the historic center of Grosseto, Tuscany. The building is located along the eastern side of Via Giuseppe Mazzini, in the section that leads from Porta Corsica to Porta Nuova, opposite the Royal Elementary School building. It is named after Bishop Giovanni Domenico Mensini, whose will provided for the construction of the palace as the seat of the diocesan seminary. Palazzo Mensini currently houses the Chelliana Library.

San Pietro is a small, medieval, Romanesque style, Roman Catholic church in the comune of Grosseto, Tuscany. The first documentation of a church at the site dates to 1188. Recent restorations have found structural elements dating to the 9th century. Of the Romanesque elements remaining are four sculpted panels with figures, animals, and decoration. The interior contains a Gothic inscription from 1235, recalling the consecration under the conte Ildebrandino Aldobrandeschi. A 17th-century crucifix has been placed inside deriving from a church in Grancia. The church was restored in 2005 and since 2010 has been also officiated by the Romanian Orthodox Church.

Palazzo Tognetti is a palace in Grosseto, Italy. It is an Art Nouveau style building on three floors located along Corso Carducci.

The Palazzo del Genio Civile (Civil Engineering Department's Building) is a building in the historic center of Grosseto, Tuscany. It overlooks Corso Carducci, the city's main street and boulevard for strolling and commercial activities. At the rear, the building faces Piazza Baccarini. This rear view differs significantly from the main facade, both in decorative motifs and in the design of the openings, highlighting the distinctiveness of the urban context and its secondary service function.

The Grand Hotel Bastiani is a hotel in the Piazza Gioberti of Grosseto, Tuscany, bordered by Via Daniele Manin and Via Giuseppe Mazzini, not far from Grosseto Cathedral's square. It was designed by architect Vittorio Mariani and opened in 1912.

The Episcopal Palace (Italian: Palazzo Vescovile), formerly Palazzo Ariosti, is a building in Grosseto, Tuscany. It is located on Corso Carducci, the main street in the city center, and houses the Bishop's residence, the diocesan offices, and the curia of the Diocese of Grosseto.

The Chiesa dei Bigi (lit. 'Church of the ash-greys'), once known as Santa Chiara, is a late Renaissance-Baroque-style, deconsecrated Roman Catholic church in the city of Grosseto, in Tuscany, Italy. The small church is attached to a former Clarissan order-convent in the center of the town.

Villino Pastorelli (formerly villino Millanta) is a villa in Grosseto, Italy. It is located along the street which serves as the northern access route into the city walls and is the main connection between Piazza Fratelli Rosselli, in the suburb of Porta Nuova, and the historic center.

The former Casa del Fascio (Fascist House), also known as Palazzo Littorio, is located in the center of Grosseto, in Piazza del Popolo. The building is a hybrid example of eclecticism and Italian Rationalism typical of the Fascist era. It forms the southern side of Piazza del Popolo, situated between the Rimembranza Bastion and the Porta Nuova gateway. The site where the building stands was once crossed by a section of the Medicean walls of Grosseto, which were demolished between 1939 and 1941. It currently houses the Grosseto headquarters of the Guardia di Finanza.

Grosseto Cathedral (Italian: Cattedrale di San Lorenzo, Duomo di Grosseto) is a Roman Catholic cathedral in Grosseto, Tuscany, Italy. It is the cathedral of the diocese of Grosseto and is dedicated to Saint Lawrence.

Villino Panichi is a Liberty-style villa in Grosseto, Italy. It is located on the corner between Piazza Fratelli Rosselli and Via Oriana Fallaci, just outside the historic center in the suburb of Porta Nuova.

Piazza Dante (also known as Piazza delle Catene, lit. 'Chains' Square') is the main public square in Grosseto, Tuscany, Italy. The piazza is located in the city's historic centre, included within the perimeter of the 16th-century city walls. It is home to the city's main representative buildings, including the St. Lawrence Cathedral, the Palazzo Comunale (City Hall) and the Palazzo Aldobrandeschi, seat of the Province of Grosseto. The northern section of the square is called Piazza Duomo, since it is overlooked by the cathedral's façade.