4 Days of Check-ins in 1 Minute

It’s a map plotted by Foursquare. Each dot represents a single check-in. Each line represents sequential check-ins. So what you see in New York is a quasi-organized beehive of activity downtown, as people bounce from location to location along the grid. And this hub emits a laser light show, as people commute in and out through just a few major pipelines.