The Borre mound cemetery, about 25 kilometres north of Tønsberg near the town of Horten, is the largest surviving group of Viking-age royal burial mounds in Scandinavia. Nine large mounds and a number of smaller ones occupy a headland above the Oslofjord, set among old trees in a quiet park that most people pass through without pausing. They should pause.
The mounds date from around 600–900 AD and are believed to mark the burial sites of kings from the Yngling dynasty — the royal line that ruled much of Norway before Harald Fairhair unified the country. The largest mounds are as wide as 45 metres and nearly 6 metres high. The site is now part of the Midgard Viking Centre, which provides context for the finds.
Access is free. From Tønsberg, a regional bus or short car journey takes you to Borre. Allow at least an hour to walk among the mounds properly.