Animated!

http://www.google.co.nz/logos/2011/worldsfair11-hp.jpg

http://www.youtube.com/watch?v=mCju6ExIpsw&feature=player_embedded

Cool!!

http://en.wikipedia.org/wiki/The_Great_Exhibition
or ?

Triggers something like
http://www.google.com/webhp?client=firefox-a&rls=org.mozilla:en-GB:official&channel=s&hl=en&source=hp&biw=1344&bih=413&btnG=Google+Search#q=Exposition&ct=worldsfair11-hp&oi=ddle
??

Tested with mobile browser and triggers
http://www.google.co.nz/search?q=World%27s+Fair&ct=worldsfair11-hp&oi=ddle

files:
http://www.google.co.in/logos/2011/worldsfair11-hp-1.gif
http://www.google.co.in/logos/2011/worldsfair11-hp-2.gif
http://www.google.co.in/logos/2011/worldsfair11-hp-3.gif
http://www.google.co.in/logos/2011/worldsfair11-hp-4.gif

http://www.google.co.in/logos/2011/worldsfair11-hr.jpg
http://www.google.co.in/logos/2011/worldsfair11-hp.png

http://www.twitpic.com/4rzsxu