Across all of its 66 offices and data centers worldwide, Facebook employs almost 16,000 people. About 1,000 of them work in the Frank Gehry-designed Manhattan location, which also houses members of the company’s Instagram team. (credit: Sarah Jacobs via Business Insider) Because the office is huge and employs so many workers, it can be easy to lose track of people. This screen allows you to type in a employee’s name and it will show you where they sit. (credit: Sarah Jacobs via Business Insider)