The video clips come from footage that Swedish filmmakers Mikael Agaton and Lars Rengfelt shot of a 1:30 scale model of Birka now housed in the Museum of National Antiquities in Stockholm.

The Birka archaeological site is located on Björkö Island in Lake Mälar and was occupied in the 9th and 10th centuries. Hovgården is situated on the neighbouring island of Adelsö. Together, they make ...