The roof of the new Facebook building, about 70-feet up, offers a winding walk through nine acres of greenery. This walkway sits above the marshlands of Menlo Park, California, not the big city. But, Goler says, it feels a lot like the elevated railroad line that now serves as a park on the West Side of Manhattan. "It's a half mile loop," she says. "It gives space to think." 

Goler, Facebook's head of human resources and recruiting, is among the few who've walked the loop. The company's new building, designed by Canadian-American architect Frank Gehry, was only recently completed. But many others will walk it today. Over the weekend, Facebook officially moved into the building, known as MPK 20, shifting many employees from its existing campus on the other side of California's Highway 84.

Spanning over 430,000 square feet in total, the new complex is just one of many rather conspicuous buildings that will house the giants of Silicon Valley in the years to come. Apple is planning a campus in Cupertino that resembles a giant alien spacecraft. Google is using miles of glass to create a "super-transparent" headquarters in Mountain View that can be regularly reshaped by cranes and robots (yes, robots). And Samsung is close to completing its own glass palace just down the road in San Jose. But the Facebook building is something different. It's very, well, Facebook-y (see images above).