The castle site in Lipari island has been populated for thousand years, but the current fortifications data mainly from the 16th century. The castle is surrounded by a long wall, built by the Spanish under Charles V domination around the mid-16th century. The enter door leads to a gallery at exit, where an iron shutter was closed, and thanks to the existent trapdoors, boiling oils were poured. The first building to see is the Church of Santa Caterina, already dismissed, built between 16th and 18th centuries, with the cross nave. The castle has other religious structures; between them the Chiesa dell’Addolorata dating back to the 16th century, with a richly decorated Baroque façade; further there is the Chiesa dell’Immacolata built in 1747. In front of the Church of Santa Caterina two wide excavation ditches show the rests of huts dating back the Bronze Age and being a part of a Greek-Roman urban plant. Next to the excavations there is Concordato staircase, built in the 10th century to connect Saint Bartholomew’s Cathedral to the urban center.
References: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.