I was recently in Dubai and they had pictures of it superimposed in cities around the world. Check out how massive it would be if it were in San Francisco: ht

I was recently in Dubai and they had pictures of it superimposed in cities around the world. Check out how massive it would be if it were in San Francisco: http://www.flickr.com/photos/steven_maher/4444617588/ http://www.flickr.com/photos/steven_maher/4444617588/