https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8802986
An inflated polyethylene greenhouse serves as the entrance to the office of the University of Arizona Environmental Research Laboratory at Tucson.
Visitors pass through a double door airlock and view this lush tropical garden before entering the main office building, 04/1974. Photographer: Norton, Boyd. Original public domain image from Flickr
Public DomainFree CC0 image for Personal and Business use