MENLO PARK (CBS SF) – By now you may have seen the nine acre rooftop garden that workers at the newest Facebook building – which opened Monday – can enjoy. But what’s actually inside the Frank Gehry-designed workspace? For that we’re going to need to enlist the help of social media.

The new building is the 20th for the expanding social network’s empire. It’s been dubbed #MPK20, and the pictures posted to Instagram (which is owned by Facebook) reveals some of the building’s most inventive designs.

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Here’s a look at where an estimated 2,800 people will now be heading to work:

https://instagram.com/p/05u_WaESfS/

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#mpk20

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View this post on Instagram

#mpk20

A post shared by @ mjaquino on

https://instagram.com/p/038xuHxXHu

https://instagram.com/p/037yLJRXGS/

https://instagram.com/p/05Sfydjcb_/

https://instagram.com/p/05eKsDlXq5/

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The new facility is 430,000 square feet, so we’re sure to see many more photos from the newest tech playground surface very soon.