Your Facebook Data Is Stored Inside This Beautifully Spartan Warehouse

For many new Facebook employees, their first days begin in front of a computer screen, learning the ins and outs of the company's code. That code, after all, serves as the foundation of the company's gigantic social network, hosting more than 1 billion daily visitors. With that in mind, it may be surprising to hear that Joel Kjellgren's first six months at Facebook were spent working out of a construction trailer. He doesn't work on the Like buttons, notification icons, or the other tools and buttons Facebook members push and poke on a regular basis. Rather, as the site manager of Facebook's data center in Luleå, Sweden, Kjellgren's oversees the massive facility that processes petabytes of data in the form of photos and stories posted to Facebook.