No it's not déjà vu. I'm not reposting. Look up. Perched atop the Stout & Co. Amsterdam building is an expansive black box. Standing on the street craning your neck you'll notice large walls of windows and what appears to be a tree growing on the rooftop garden. A passerby would be forgiven for stopping and pondering what exactly is up there. We know. By Puur Plus Ontwerpers.