A Swedish art project aims to create an underwater city of the world’s most famous buildings to highlight the threat from ...

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.

All the sculptures are made from scrap recovered by his organisation Hands2Ocean, which picks up rubbish dropped in the waters around Stockholm. Johansson says that in the six years he has been ...