I did a post on Google Earth tourism last March.
Something I’ve just discovered in the last few days is that the chateaux of the Loire Valley have been very thoroughly visited by the Google van – blue lines all over everything, so you can see the gardens, the approaches, outbuildings, and the chateau from far and close and from all angles. You could spend hours just looking at one chateau. Look up Chenonceau or Chambord, if you’re interested.
Versailles has also been thoroughly Google-photographed.
I should check out the Taj Mahal one of these days…