What could this be? A futuristic mood ring? An artist’s rendering of a wormhole? Nah. Those are too abstract. This is based on something all too real, and totally inescapable.
What you’re looking at is a project from Fernanda Viégas and Martin Wattenberg called Flickr Flow. It’s a look at how the colors in Flickr images of the Boston Common change with every season:
via: gizmodo.