Nearly 200 m above the Mosel river next to Pommern and Karden lays the high plateau of the Martberg. Its name still reminds you of the celtic-roman god Lenus-Mars who has been worshipped here in ancient times.
In the celtic period, around 100 BC, the Martberg was a central town an oppidum of the local celtic tribe called Treveri. According to current research the plateau of 45 ha was densly settled with small houses made of wood and clay. The settlement was surrounded by a wall constructed out of timber and stones. The evidence of coinage, handicraft and many imported goods emphasize the importance of the settlement in these times.
In the central area of the mountain archaeologists found a sanctuary of several celtic-roman temples which date from the 1st century BC to the 4th century AD. The sanctuary was surrounded by a large rectangular collonade which has been 60 to 70 m. In the center stood the main temple built in the typical celtic-roman style. It had a central square building called cella and a surrounding roofed verandah with stone pillars. The cella was the most important part of the temple because there was the god’s statue placed. Next to the central temple four smaller temples were discovered built in the same way as the main temple. In the sanctuary archaeologists found large quantities of offerings. The believers offered more than 10.000 coins, hundreds of fibulas, weapons as well as thousands of miniature ceramic vessels to their gods. In the course of the christianisation the sanctuary was abandoned after 400 AD. The religious center moved from the Martberg to Karden where an early christian community was established.
Since the year of 2006 AD it is possible to visit the celtic-roman sanctuary again. The major temple with its impressive wall paintings and one minor temple are reconstructed completely. Two other temples and the surrounding wall are rebuilt partly. Furthermore you can see some houses built in the way of the celtic period. Many of the objects from the Martberg and 2000 years of the history of Karden can be seen in the Stiftsmuseum of Treis-Karden. The museum is located next to the church of Karden.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.