I came upon this nice Google Blog on how the earth map looks with reference to the places mentioned in the book.
Really an interesting insight. What the author of this post has done is that he has plotted points on the earth map with refernce to the number of times these locations are mentioned in various books.
Its interesting to find out that America, Europe, India, Japan and Indonesia predominantly standing out in the map. Also, whats interesting to notice is that Russia is not that evident in the map.
The map may be biased in the sense it depends on what types of books have mentioned these places. If its books on travel, then places that were nice to travel would be mentioned mostly.
The map contains mostly of blue and green dots. It would have been great if the author had mentioned what these dots meant.
Power of data (knowledge)!!! :)