Inside Facebook Headquarters

Before the company's S-1 filing, Facebook moved its employees from its old offices in Palo Alto, Calif., to a new 57-acre campus in Menlo Park, Calif., a building formerly owned by Sun Microsystems. The new campus also boasted a vanity address — 1 Hacker Way — which paid homage to Facebook’s culture. As founder Mark Zuckerberg described the S-1 filing, “We have cultivated a unique culture and management approach that we call ‘The Hacker Way’... ‘The Hacker Way’ is an approach to building that involves continuous improvement and iteration.”

The company, which reported revenue of $3.7 billion in 2011, pushed ahead with its hacker way, implementing new features to the site, including “Timeline” and “Listen with Friends.” Like many other technology and Internet companies, Facebook is fostering a creative environment with its new campus, which offers everything from open, communal working areas and a fitness center, to free meals and open bars throughout the office for impromptu happy hours.

For the approximately 2,000 employees who will report to work here each day — aside from the 21 days of vacation and 11 holidays off that they receive per year — it’s sure to be a unique work experience. Click ahead for a look into Facebook’s new Menlo Park campus.

By Julia Boorstin and Paul Toscano
Updated 18 May 2012

A view of the entrance to building 10 at the Facebook main campus.

Employees get lunch in the cafeteria at the Facebook main campus.

An employee walks past 'The Facebook Wall,' a chalkboard on which employees can write or draw whatever they want.

A street sign reading 'Hacker Way' is seen in the parking lot.

Bicycles hang on the wall in one of the many open work spaces.

An employee walks past a selection of sweet and salty treats which are available for the taking at the Facebook main campus.

Yes, that's Stella on tap. At the new Facebook headquarters in Menlo Park, Calif., there are five bars — fully stocked with alcohol and beers on tap — sprinkled around the campus. Individual teams handle the booze and host happy hours, Facebook tells CNBC’s Julia Boorstin. You can guess there will be some happy hour celebrations in the days following the company’s S-1 filing.

No, this is not a mini-gym. “Insanity Wolf” is a room at Facebook’s headquarters that is outfitted with a phone and a treadmill to allow employees to walk while doing conference calls or working on a laptop. Facebook calls these rooms “cozies.” Pictured here is Adam Varro, manager of Facebook Marketing Solutions, using the room in December.

Incidentally, the room’s tongue-in-cheek name was voted on and chosen by Facebook employees who work in the area.

Facebook headquarters has custom electronics vending machines that sell items such as USB cords for connecting iPhones to Macs.

Once an office for Sun Microsystems, the exterior of Facebook’s headquarters appears corporate, but the company has done a lot to make the interior more like its funkier old headquarters in Palo Alto. To the left is one of the funkier lounge areas, dubbed the “Just Kickin’ It Lounge.”

For most users, the “Facebook Wall” is the part of their profile where friends can post messages and see recent activities. At Facebook’s headquarters, however, this term takes new meaning: All around the building, employees are given the opportunity to write on the walls, whether it’s on chalkboards or white boards, with the word “hack” appearing numerous times as a favorite tag. Pictured here is the wall in the entrance of the headquarters building.

Perhaps one of the most memorable objects in the Facebook headquarters is a phone booth with a Superman costume hanging in it, located in one of the building’s communal areas.

Facebook gut-renovated the headquarters building, tearing down walls and exposing the skeleton of the structure in many places. The floors are all open, and not even Mark Zuckerberg has an office — instead workers are placed at long open tables. According to the Los Angeles Times, Sun Microsystems dedicated 270 square feet to each of its employees, while Facebook has reduced this number to 150 square feet per employee. As a result, the company will save on energy costs.

The building, similar to those that house other Silicon Valley companies, is designed to foster creativity. The polished concrete floors not only give the building an edgy feel, but are also conducive to skateboarding and caster boarding, as seen here.

Pictured here is another example of how Facebook employees are given the opportunity to lend their personal touch to the campus. This unique corridor is coated with chalkboard paint, allowing employees to doodle, draw, and leave messages, in what many believe encourages a creative environment.

Facebook employees work at their desks in the company's new campus. The colorful desks, open work area, and the exposed ceilings are plainly seen in the photo to the left.

Pictured here is one of Facebook’s many work lounges, called “12 Angry Men,” with an employee working as she reclines on a couch. In a campus with a lack of conference rooms, Facebook hopes to accommodate more than 6,000 employees on the new campus, which will feature over a million square feet of office space.