User blog:JoePlay/Alduin’s Wall

It has been revealed that the large, moveable background image found at the official Elder Scrolls site actually tells a story. The story depicted is "a history and a prophecy that speaks to one of the great legends of Tamriel – the story of Alduin". Alduin is the name of one of the dragons that once terrorized Tamriel but has now returned.

Explore the interactive image for yourself - at GameInformer.com - and learn what the hero of Skyrim, the Dragonborn, will be forced to uncover as he examines it for clues.

Source: Game Informer via Joystiq