From the BBC web site:
"The extra space has been described as "the most expensive real estate in the world". It is not publicly used on existing 747s but could be converted into smoking rooms, lounges, bunks or shops."
The plane looks much better than that ugly Airbus 380, and most of you know my views about Airbus planes link
For the BBC slide show, click on this link. What a beauty!
Purgatorian Post #806