The Chiesa del Purgatorio is dedicated to all saints and the souls in purgatory. It was first consecrated in 1658, erected under the patronage of the Mazza family. The earthquake that nearly levelled Ragusa, left this church mainly untouched, and in 1694, it took over some of the functions of the nearby church of San Giovanni, that had moved into a new district of Patro. In 1729, this church was placed under the jurisdiction of the church of San Giorgio.
A bell-tower was added in the early 18th-century. But too small for the district, in 1740, a new church was begun with a central nave and two chapels, separated by columns with Corinthian capitals (1741). The three order facade was completed in 1757, but the presbytery completed in 1787, when it underwent reconsecration.
The church is preceded by a steep staircase to a small piazza degli Archi. The chapels of the Holiest Sacrament and the Holiest Crucifix have altars respectively depicting St John the Evangelist and the Addolorata. The main altarpiece depicts Saints and Souls in Purgatory by Francesco Manno. The cornice has depictions of earthly glory interspersed with skulls as a Memento mori.
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Monte d"Accoddi is a Neolithic archaeological site in northern Sardinia, located in the territory of Sassari. The site consists of a massive raised stone platform thought to have been an altar. It was constructed by the Ozieri culture or earlier, with the oldest parts dated to around 4,000–3,650 BC.
The site was discovered in 1954 in a field owned by the Segni family. No chambers or entrances to the mound have been found, leading to the presumption it was an altar, a temple or a step pyramid. It may have also served an observational function, as its square plan is coordinated with the cardinal points of the compass.
The initial Ozieri structure was abandoned or destroyed around 3000 BC, with traces of fire found in the archeological evidence. Around 2800 BC the remains of the original structure were completely covered with a layered mixture of earth and stone, and large blocks of limestone were then applied to establish a second platform, truncated by a step pyramid (36 m × 29 m, about 10 m in height), accessible by means of a second ramp, 42 m long, built over the older one. This second temple resembles contemporary Mesopotamian ziggurats, and is attributed to the Abealzu-Filigosa culture.
Archeological excavations from the chalcolithic Abealzu-Filigosa layers indicate the Monte d"Accoddi was used for animal sacrifice, with the remains of sheep, cattle, and swine recovered in near equal proportions. It is among the earliest known sacrificial sites in Western Europe.
The site appears to have been abandoned again around 1800 BC, at the onset of the Nuragic age.
The monument was partially reconstructed during the 1980s. It is open to the public and accessible by the old route of SS131 highway, near the hamlet of Ottava. It is 14,9 km from Sassari and 45 km from Alghero. There is no public transportation to the site. The opening times vary throughout the year.