
The 57-acre Facebook campus, which formerly housed Sun Microsystems, features open work spaces for nearly 2,000 employees on the one million square foot campus, with room for expansion.
Launched in February 2004, Facebook has more than 800 million active users.
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An employee works on a computer at the new headquarters of Facebook in Menlo Park, California.
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An employee works in one of many "cozies," tiny, personal conference rooms featured at the new headquarters of Facebook in Menlo Park, California.
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Employees wait at the IT service desk at the new headquarters of Facebook in Menlo Park, California.
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Employees gather in their work environment for a discussion at the new headquarters of Facebook in Menlo Park, California.
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An employee walks through the cafeteria at the new headquarters of Facebook in Menlo Park, California.
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Employees chat at the new headquarters of Facebook in Menlo Park, California.
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Employees choose to either sit or stand while working at the new headquarters of Facebook in Menlo Park, California.
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An employee writes a note on the message board at the new headquarters of Facebook in Menlo Park, California.
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Facebook workers sit at their desks before a news conference at their office in New York.

Facebook workers stand at their desks before a news conference at their office in New York.
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An art and message board is seen in a hallway at the new headquarters of Facebook in Menlo Park, California.
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A sketch of founder and CEO Mark Zuckerberg is seen on a wall at the new headquarters of Facebook in Menlo Park, California.
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An employee works in the international user operations area at the new headquarters of Facebook in Menlo Park, California.

A "cozy" awaits an employee at the new headquarters of Facebook in Menlo Park, California.
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Employees are shown in their working environment at the new headquarters of Facebook in Menlo Park, California.