In their project 'Bulding Rome in a Day' the group considered the problem of reconstructing entire cities from images harvested from the web. The aim is to build a parallel distributed system that downloads all the images associated with a city from Flickr.com. After downloading, it matches these images to find common points and uses this information to compute the three dimensional structure of the city and the pose of the cameras that captured these images. All this to be done in a day.
The movie below details thier sample work using 58,000 images of Dubrovnik sourced from Flickr:
If you do anything today check out their Building Rome in a Day page for further movies and details.