I noticed that yesterday, I was trying to work out what the one at the bottom was, is is a castle or something?
I've been to Edinburgh castle twice, and unless I was drunk both times (which I may have been) it didn't look anything like that!
lots of no follow tags.. google is stingy with that link juice http://www.google.co.uk/doodle4google/
Good spot, it seems that the only links that don't have nofollow nowadays are the ones that are bought. Maybe that's how Google spots them