Bjorn Sefeldt is correct. This is owned by a private train hobbyist, but he has turned his hobby in to a museum. This is the biggest train set in Scandinavia. I Found a YouTube clip from a German museum and that is amazing.
(I have a Marklin HO scale set on a 2m x 1m plywood in the basement, waiting for my grandchildren.)


http://www.youtube.com/watch?feature=player_embedded&v=ACkmg3Y64_s