This is very cool!
Entire Cities Recreated Using Thousands of Flickr Photos
“A group of researchers with University of Washington’s graphics and imaging laboratory (GRAIL) wanted to see if they could build a piece of software that would search the web for images of a particular place and recreate that place in 3D in under a day.They succeeded, and the team, lead by Sameer Agarwal, created a simulation of Rome using 150,000 images harvested from photo-sharing website Flickr, and build a virtual model within a day.”
(Via The Next Web.)