[Cyclefrance]

Not that I'm biased or anything but Buckingham Palace has a status that cannot be bettered. It isn't just the main building, there are the stables for horses and carriages (including the famous gold coronation carriage) , the Queen's Gallery which displays all manner of art works (Faberge Imperial Russian jewel-encrusted eggs last year) and a wonderful walled garden. Sears Tower doesn't come close even to the Chrysler Building and I would still vote Buck House ahead of that. Well, OK, maybe I am a teensy weensy bit biased...