"There are several excavations of Iron Age settlements around Tissø [Denmark] and in 1976 a large golden ornamental ring manufactured in the 10th century, was unearthed during a regular field-plowing. The Tissø Ring is a neck-ring with a diameter of 30 cm and at 1.83 kg (originally 2 kg), it is one of the largest gold finds in Denmark. This led to professional investigations and remains of a Viking estate was discovered at the site now known as 'Kalmargården', near Fugledegård on the western lakebrink. In 1995-2003 large scale excavations revealed, that the total settlement covered c. 500,000 m2 (50 ha), centered around a 12 x 48 m hall and with several buildings and structures believed to have ritualistic purposes. In 2012 remains of another large hall measuring 8 x 35 m was discovered. The magnates residence of Kalmargården, greatly resemble the residences excavated at 'Old Lejre' in central Zealand and at Järrestad in Scania. It has been suggested that Kalmargården served as a seasonal residence for the royal family based in Old Lejre." Source: Wikipedia.