Terrosi Park - In 1750 the noble Cetonese Sallustio Terrosi started to build his palace pulling down some small canals. He desidered to give prestige to his family, so he built a villa and a 15 hectares park. But when the building started, the area presented a series of canals and a very steep hillock where the ruins of a little medieval tower were found. Thanks to the abundant manpower at disposal, Terrosi ordered to fill the canals with the earth dug out of Cuculuzzo hill through a system of galleries on more levels. When he had the permission to pull down the ruins of the tower, he arranged to build up retaining walls and to terrace the slopes of the steep hill with the stones of the old tower. He realized embellishments and new structures inside the park, such as the amphitheatre with more than 200 seats, the Roccolo for hunting (in place of the old tower) and the Casina Turca (Turkish House), competely frescoed. After the fashion of his time, Terrosi (and his descendants) gathered archeological findings coming from the excavations in his properties near Chiusi: so the park was enriched by Etruscan sarcophagi and cinerary urns, ancient or classical statues. The Etruscan tomb called Pania was rebuilt after being dismantled and drawn from the place of discovery. It is possible to visit the Park (now private property) in some periods of the year (you can ask information to the Tourist Office).

The Tower- The Corpo di Guardia (Guardhouse) of the Tower was built after 1500 in front of the old door of the castle which remained inside the right inner part. From here it was possible to go to the parade ground and to the donjon through a ramp. In the old times the castle was defended by three towers, but war events and the time have caused the reduction of the towers. Nowadays there is only one, made of stones, which was rearranged and presents an added covering: it is the old donjon with brackets and stone arches.

The Camporsevoli Castle - The origin of the characteristic suburb of Camporsevoli goes back to an Etruscan settlement placed in the surroundings. We can find the first certain information in a legal transaction written down at the times of Frederic Redbeard, but it is possible Camporsevoli belonged to the territory of the old Lombard Chiusi Duchy and later to the County which followed. After the County was divided, Camporsevoli went to a branch of the old Farolfingi Counts (perhaps to Campiglia Counts). In the years 1232-1235 the "Camporseldule" Castle was the place of a hard struggle for its possession between the populations of Siene and Orvieto, ended in favour of the last ones thanks to the intervention of Florence. Remained under the influence of Orvieto at least until the first half of 1300, Camporsevoli was the feud of the noble Montemarte family until when, involved in the civil wars in Orvieto, it was assaulted and destroyed in 1352 by the Ghibelline troops of the Prefect of Vico who pulled down the walls.Passed to the Campiglia Viscounts in 1432, after it had been attacked and damaged by the Senese troops, the Castle became property of the Piccolomini family: Pope Pius II gave it to his own nephews Giacomo and Andrea who transferred it to the Republic of Siena in 1464. In 1559, after the fall of the free Republic of Siene, the Medicis took possession the Camporsevoli Castle with the title of "Vicar-apostolics", but new disputes arose with the Malaspinas who first claimed the rights on half the feud, then gave them to the Gran Duchess Mary Magdalene of Austria who passed them to the noble Florentine Niccolò Giugni: he was the person who obtained the whole feud from Fredinand II in 1630. With the Napoleonic suppression of the feuds, Camporsevoli was united first to San Casciano dei Bagni and then to Cetona. Nowadays there are only some parts of the walls and the door of the old castle, while the central body of the building was replaced by a villa. The Chiesa dei Santi Maria e Giacomo is close to the villa: it was built by the Piccolominis in 1500 perhaps on an older foundation, identifiable with "Plebem Sanctae Mariae de Spino cum Cappella Sancti Johannis et massaritiis" mentioned by Pope Celestine III in the January 1191 Bull: this Bull gave the Bishop Teobald the properties of the Chiusi church. The bell tower was built in the 20th century.