Where the staircase meets the second floor, a lime-green structure houses meeting rooms; the doors are recycled from the building’s previous tenants (on the upper level, they are ornamental). The secondary color is significant: “We didn’t want to over-brand the space, which would have happened if we’d used Google colors everywhere,” Wilkinson says. At the bottom of the staircase (left) is the lobby, where a slideshow titled “Googlers Everywhere!” is projected on the wall.