Risbebjerg is an archeological site containing both the remains of a Neolithic sun temple and Iron Age earthworks. Bordered by the Øleådalen valley, the site is marked by Iron Age earthworks consisting of semicircular ramparts 3 metres high and a dry ditch 2 metres deep, dating back some 2,000 years. There are also remains of a number of 5,000-year-old woodhenges, one of which has been recreated with stumps of wood in the original holes, giving an impression of the size of the ancient site. An observation tower provides information and views over the historic area.
The site was discovered in 1897, leading to finds near a spring of six flint axes and four flint chisels from the mid-Neolithic. The following year, a further 13 flint axes and two chisels were found, making it one of the principal sites for finds of flint axes and chisels. The fact that the finds were made near a spring indicated that the site had religious significance.
The site contains a number of ancient wooden circles from about 2,800 BC. Traces of the original wooden poles have been found and recently marked out with stumps of wood. From the clay pieces, burnt flint and burnt bones found on the site, it has been suggested that the circles may have served as a sun temple. They apparently supported a clay-covered platform, accessed by a flight of steps, on which experts believe fires could have been lit, possibly for sacrifices. Clay disks with ancient sun symbols have also been found, ritually buried under the poles. It appears as if the wooden circles were constructed over three separate periods.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.