Amazon unveiled the newest addition to its Seattle campus today — three glass and concrete domes filled with a jungle’s worth of tropical plants. The Spheres, as they’re called, are meant to serve as a place for meetings and collaborative work. Communal spaces, many in the shape of nests, are scattered throughout the lush interior.

The $4 billion project is a chance for Amazon to flaunt its continued success and wow potential employees, but it could also function as a test of sorts. Green