Google’s Steve Seitz & UW researchers first clustered 86 million photos into landmarks. Then, according to the project site,
We sort the photos by date and warp each photo onto a common viewpoint. Finally, we stabilize the appearance of the sequence to compensate for lighting effects and minimize flicker. Our resulting time-lapses show diverse changes in the world’s most popular sites, like glaciers shrinking, skyscrapers being constructed, and waterfalls changing course.
And now they’re able to give the results some 3D movement: