Vall Church is a largely Romanesque church that dates from the 13th century. It was built in three phases. Oldest is the choir with the apse, and the nave, dating from the early part of the century. The tower was begun during the middle of the century and made higher at the end of the century.
The church is a relatively well-preserved Romanesque building, with a tower that is unusually tall in comparison with similar churches on Gotland. All the church portals are Romanesque, and of these the north portal of the tower is the most noteworthy. Internally, the vaults of the nave are supported by a single central pillar, whose decoration is reminiscent of the decoration in the choir of Visby Cathedral. In the tower base there is a separate chamber with a hagioscope opening towards the nave. Similar chambers can be found e.g. in Bro and Martebo churches.
Remains of medieval stained glass panes exist in one of the church windows. In the south wall of the apse sits a niche with a pair of doors from circa 1300. The doors are richly carved and carry runic inscriptions. The altarpiece is from 1684, and made in Burgsvik, while the baptismal font dates from the 12th century and is a work by the Romanesque artist Majestatis. The pulpit is a work from the early 18th century. In the church floor there is also the tombstone of Peter Harding, who led the peasant faction during a civil war on Gotland in 1288. The oldest of the church bells, finally, dates from 1443 and had belonged to Hogrän Church.
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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.