For companies whose trade is measured in digital 1s and 0s, the tech giants of Silicon Valley seem pretty keen on having physical reminders of their success in the form of majestic headquarters. The latest example comes from Facebook, with Mark Zuckerberg announcing this week that the company has officially moved into its new digs: a 430,000-square foot warehouse designed by architectural superstar Frank Gehry and nicknamed "MPK20" (code for Menlo Park, building 20).

The building is basically one massive room and boasts the largest open floor plan in the world — a single area where thousands of people can work at once. There are smaller spaces for private work as well, and employees can always head to the 9-acre park located on MPK20's roof, boasting a half-mile walking trail, over 400 trees, and areas to work in. There's also a conference room slash ball pit inside — although this was apparently just the temporary result of "first day shenanigans."

First day shenanigans #theaquarium A photo posted by Wei Jien (@wei.jien) on Mar 30, 2015 at 6:48pm PDT

"The building itself is pretty simple and isn’t fancy," wrote Zuckerberg on his Facebook page. "That’s on purpose. We want our space to feel like a work in progress. When you enter our buildings, we want you to feel how much left there is to be done in our mission to connect the world."

"unassuming, matter-of-fact and cost effective."

In an official statement regarding the project, Gehry said that Zuckerberg had wanted a space that was "unassuming, matter-of-fact and cost effective." The building, he said, was therefore not "overly designed" and has been kept "flexible to respond to the ever-changing nature of [Zuckerberg's] business; one that facilitated collaboration and one that did not impose itself on their open and transparent culture. This is the building that we created for him."

These values — openness, lack of pretense — are also noticeable in how Facebook chose to publicize the site. Rather than releasing a bunch of official photographs to the press, the company invited its top Instagrammers to document the site before it opened up. Will Google have to beat this by organizing a Periscope party to look round their new, planned offices? Somehow, we doubt it.

#mpk20 A photo posted by Scott Shapiro (@scottshapiro23) on Mar 30, 2015 at 4:18pm PDT

3) Another staircase shot from yesterday's walk through of @facebook's new expansion campus. See previous post for more info and check out the link in my bio for the full gallery. #MPK20FirstLook #MPK20 A photo posted by Toby Harriman Photography (@tobyharriman) on Mar 30, 2015 at 4:00pm PDT

New art from @chrislux & @summerisrad as part of the @FBairprogram in @Facebook's new Building 20 #MPK20 #MPK20FirstLook A photo posted by John Barnett (@johnbarnett) on Mar 30, 2015 at 9:01pm PDT

Best part about the new Facebook campus: the (prank/short-lived) ball pit conference room #mpk20 #westcampus #fbhq A photo posted by Sara Stalla (@sarastalla) on Mar 30, 2015 at 1:03pm PDT

Love this piece from @fbairprogram. Reminds me of that song from Empire. #dripdrop #mpk20 #vscocam A photo posted by Shali Nguyen (@shali) on Mar 30, 2015 at 5:59pm PDT

Exciting opening day at @Facebook's new office building. This is the entrance I'll walk through on my way to my desk. Beautiful views everywhere. #MPK20 #MPK20FirstLook #Facebook A photo posted by Mark Pike (@markpike) on Mar 30, 2015 at 9:19pm PDT

Sunsets are gonna be epic on the 9-acre green roof at the @facebook office. A quick candid snap of the crew on Evan Shivleys tree stump art installation!! #MPK20 #MPK20firstlook A photo posted by Elizabeth Gilmore (@elizabethgilmore) on Mar 30, 2015 at 2:28pm PDT

Rooftop garden of the new facebook office. #mpk20firstlook A photo posted by Jaed (@jpon) on Mar 30, 2015 at 11:44am PDT