11 mysterious monuments in Sweden
There are many traces of ancient people in Sweden. Even before the vikings, the Geats, a legendary North Germanic tribe ruled the southern Sweden with sword. Here are listed some of the most mysterious and fascinating ancient sights of this time.

Ale's Stones
Ale's Stones (Ales stenar) is a megalithic monument which consists of a stone ship 67 meters long formed by 59 large boulders of sandstone, weighing up to 1.8 tonnes each. According to Scanian folklore, a legendary king called King Ale lies buried there. The carbon-14 dating system for organic remains has provided seven results at the site.
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The Royal Mounds
The Royal mounds (Kungshögarna) is the name for the three large barrows which are located in Gamla (Old) Uppsala. According to ancient mythology and folklore, it would be the three gods Thor, Odin and Freyr lying in Kungshögarna.
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Rock Carvings in Tanum
One of the largest rocks of Nordic Bronze Age petroglyphs in Scandinavia is located in Tanumshede locality, Tanum Municipality. In total there are thousands of images called the Tanum petroglyphs, on about 600 panels within the World Heritage Area.
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Anundshög
Anundshög is the largest tumulus in Sweden. It has a diameter of 60 metres and is about 9 metres high. Assessments of the era of the mound vary between the Bronze Age and the late Iron Age.
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King's Grave
The King's Grave (Kungagraven i Kivik, Kiviksgraven) is what remains of an unusually grand Nordic Bronze Age double burial c. 1000 BC.
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Ismantorp Fortress
Ismantrop is an ancient fortress, which was used probably between years 300-500 AD. The ringfort consists of a limestone wall approximately 300 meters long and has nine gates. Inside the ringfort were 95 houses arranged in 12 blocks around a central open area with a circular building.
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Gråborg Castle
Gråborg is the largest ancient castle in Öland. It was built probably in the 6th century and enlarged through Middle Ages. According old tax reports dating back to the year 1450, Gråborg was owned by Vadstena abbey and functioned as a some kind of trade center. It was used for defence against Danish even in 1677.
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Birka
During the Viking Age, Birka was an important trading center. The archaeological sites of Birka and Hovgården, on the neighbouring island of Adelsö, make up an archaeological complex which illustrates the elaborate trading networks of Viking Scandinavia and their influence on the subsequent history of Europe.
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Helgö
The island of Helgö is probably best known for a major archaeological area. The old trading town on Helgö began to emerge around the year 200 AD, 500 years before the well-known Birka.
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Tjelvar's Grave
Tjelvar’s Grave is one of the best preserved stone ship settings in Gotland. According the legend Tjelvar, the first man lived in Gotland, is buried there. Archaeologists have dated the grave to made in the late Bronze Ages, 1100-500 BC. Tjelvar’s grave is 18 metres long and 5 metres wide.
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Luttra Passage Grave
The Neolithic passage grave (a tomb where the burial chamber is reached along a distinct, and usually low, passage) of Luttra is one of the best preserved of its kind in Västergötland. Still time has not been acting too gracious on this site, this ancient tomb is damaged and even partly destroyed.
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