You should know that Google Maps has been integrated in many websites. People can add marks, nodes, or other things that the website owner allowed to the map. You can even find a place where Google Maps was combined/mashuped to other open API website application, such as: Flickr or Twitter.

Now, this probably you haven't seen. The Che magazine from Belgium, who has made several funny sexy ads develop this website as part of its funny campaign. The Che-Earth website is using Google Maps to show where to find sexy girls in your country (though it would only run correctly if you input European countries). Btw, don't expect the girls to be real, since all girls are fakes, as it's only part of Che's advertising campaign.