Borre mound cemetery are ancient Burial Mounds from the Viking period

burrial mound tumulus grass vestfold county barrow borre national park tree era antiquarian grave conquest burried horse midgard cultural heritage central national heritage board excavations viking age norsemen ancient trade riding equipment viking colonization discover vikingera raids borre brutal weapons archaeologist helmet ceremony history historical enemies research raiders odin sword oppdal death prehistoric thor viking ship warrior friend harbour jewelery norway