Here is a wonderful idea from the creators of Fotopedia to aggregate high quality images of UNESCO-protected sites around the world on an Apple iPad app.
Fotopedia Heritage is the latest part of a wider project to collect photography from web users under Creative Commons, but this time curated around a single theme - the 911 heritage sites around the world protected and under the auspices of the United Nations.
The app is actually quite simple - a continual run through of around 20,000 images of UNESCO sites, each linked to relevant Wikipedia content and maps.
The photography is inevitably stunning and the information included easily means the app is - probably without even trying - one of the best travel guides currently available.
And it's free.
Here is a long but extremely interesting interview with Fotopedia founder Jean-Marie Hullot, a former Apple and NeXT Software senior engineer, conducted by Robert Scoble. Worth a watch...