https://creativecommons.org/publicdomain/zero/1.0/https://www.rawpixel.com/image/8802540
One Example of Wall Construction in Experimental Housing Using Empty Steel Beer and Soft Drinks Cans near Taos, New Mexico Exterior and Load Bearing Walls Such as This Use Eight Can Blocks Wired Together and Will Be Plastered over When the House Is Comple. Original public domain image from Flickr
Public DomainFree CC0 image for Personal and Business use