Facebook has big responsibilities now that its shares are publicly traded, but its headquarters in Menlo Park, California, gives the impression that the company refuses to grow up. Employees glide around the campus on skateboard-like RipStiks and join each other for drinks and games when they’re not in conference rooms whose very names reflect a disdain for convention.

In this gallery, we show glimpses of the campus gathered during photo shoots for our recent cover story, “What Facebook Knows.” We have applied an Instagram filter to each image, making use of the technology that Facebook bought with its largest acquisition to date.