Facebook also chose 181 Fremont for its enhanced privacy and security and all of these benefits will also be offered with the top floor residences. Its exoskeleton structure also makes for column-free open floor plans and unobstructed views of Downtown and the Bay. Facebook employees at 181 Fremont will have access to the Salesforce Center that will be directly across the street.

https://www.sfhighrises.com/facebook-coming-181-fremont-san-francisco/