Skiringssal - Kaupang in Norway
The Independant's David Keys wrote Vikings' home reveals extent of their wanderlust about archaeological finds at Sciringes Heal - Kaupang, just south of Oslo and near the town of Larvik. Items estimated to have come from areas across the european continent demonstrate the range of trade in the viking age. Building remains at a second site about a mile to the north include a large hall associated with the Yngling Dynasty that had burned down. The article is repeated at National Geographic.

A related story at Discovering Archaeology's Norway's First Town - A Viking Settlement Surprises Archaeologists discusses finds around Skiringssal - Kaupang and that evidence point to the location being occupied year-round. That would make the place the only known town in ninth century Viking Norway instead of a seasonal market-port. Sciringes Heal - Kaupang was founded in the 780's and is believed to be Norways earliest town. It was abandoned around 900 A.D. More information can be found on the project's homepage, http://www.kaupang.uio.no. Associate Professor Dagfinn Skre, Department of Archaeology, History of Art and Conservation, University of Oslo, is head of The Kaupang Investigation 2000-2006 and wrote an detailed article in Apollon, the University of Oslo research magazine entitled Was Kaupang Norway's first Town?