If you are fascinated by time-lapse videos, this news item might be of interest. A group at the University of Washington (in collaboration with Google) has created an automated process of scanning the 86 million photos posted online and turning them into time-lapse videos showing glaciers shrinking, skyscrapers being erected, and much more (a total of 11,000 time-lapses). Their approach involves clustering the photos into landmarks or popular photographic sites, sorting by date, warping each photo to a common viewpoint, and stabilizing the sequence to minimize changes in lighting.
Below is a video showing some of the 11,000 time-lapses they created:
And here is a preprint of their paper to be published in ACM SIGGRAPH 2015:
http://grail.cs.washington.edu/projects/timelapse/TimelapseMiningSIGGRAPH15.pdf